Writing an Abstract for Your Research Paper
Definition and Purpose of Abstracts
An abstract is a short summary of your (published or unpublished) research paper, usually about a paragraph (c. 6-7 sentences, 150-250 words) long. A well-written abstract serves multiple purposes:
- an abstract lets readers get the gist or essence of your paper or article quickly, in order to decide whether to read the full paper;
- an abstract prepares readers to follow the detailed information, analyses, and arguments in your full paper;
- and, later, an abstract helps readers remember key points from your paper.
It’s also worth remembering that search engines and bibliographic databases use abstracts, as well as the title, to identify key terms for indexing your published paper. So what you include in your abstract and in your title are crucial for helping other researchers find your paper or article.
If you are writing an abstract for a course paper, your professor may give you specific guidelines for what to include and how to organize your abstract. Similarly, academic journals often have specific requirements for abstracts. So in addition to following the advice on this page, you should be sure to look for and follow any guidelines from the course or journal you’re writing for.
The Contents of an Abstract
Abstracts contain most of the following kinds of information in brief form. The body of your paper will, of course, develop and explain these ideas much more fully. As you will see in the samples below, the proportion of your abstract that you devote to each kind of information—and the sequence of that information—will vary, depending on the nature and genre of the paper that you are summarizing in your abstract. And in some cases, some of this information is implied, rather than stated explicitly. The Publication Manual of the American Psychological Association , which is widely used in the social sciences, gives specific guidelines for what to include in the abstract for different kinds of papers—for empirical studies, literature reviews or meta-analyses, theoretical papers, methodological papers, and case studies.
Here are the typical kinds of information found in most abstracts:
- the context or background information for your research; the general topic under study; the specific topic of your research
- the central questions or statement of the problem your research addresses
- what’s already known about this question, what previous research has done or shown
- the main reason(s) , the exigency, the rationale , the goals for your research—Why is it important to address these questions? Are you, for example, examining a new topic? Why is that topic worth examining? Are you filling a gap in previous research? Applying new methods to take a fresh look at existing ideas or data? Resolving a dispute within the literature in your field? . . .
- your research and/or analytical methods
- your main findings , results , or arguments
- the significance or implications of your findings or arguments.
Your abstract should be intelligible on its own, without a reader’s having to read your entire paper. And in an abstract, you usually do not cite references—most of your abstract will describe what you have studied in your research and what you have found and what you argue in your paper. In the body of your paper, you will cite the specific literature that informs your research.
When to Write Your Abstract
Although you might be tempted to write your abstract first because it will appear as the very first part of your paper, it’s a good idea to wait to write your abstract until after you’ve drafted your full paper, so that you know what you’re summarizing.
What follows are some sample abstracts in published papers or articles, all written by faculty at UW-Madison who come from a variety of disciplines. We have annotated these samples to help you see the work that these authors are doing within their abstracts.
Choosing Verb Tenses within Your Abstract
The social science sample (Sample 1) below uses the present tense to describe general facts and interpretations that have been and are currently true, including the prevailing explanation for the social phenomenon under study. That abstract also uses the present tense to describe the methods, the findings, the arguments, and the implications of the findings from their new research study. The authors use the past tense to describe previous research.
The humanities sample (Sample 2) below uses the past tense to describe completed events in the past (the texts created in the pulp fiction industry in the 1970s and 80s) and uses the present tense to describe what is happening in those texts, to explain the significance or meaning of those texts, and to describe the arguments presented in the article.
The science samples (Samples 3 and 4) below use the past tense to describe what previous research studies have done and the research the authors have conducted, the methods they have followed, and what they have found. In their rationale or justification for their research (what remains to be done), they use the present tense. They also use the present tense to introduce their study (in Sample 3, “Here we report . . .”) and to explain the significance of their study (In Sample 3, This reprogramming . . . “provides a scalable cell source for. . .”).
Sample Abstract 1
From the social sciences.
Reporting new findings about the reasons for increasing economic homogamy among spouses
Gonalons-Pons, Pilar, and Christine R. Schwartz. “Trends in Economic Homogamy: Changes in Assortative Mating or the Division of Labor in Marriage?” Demography , vol. 54, no. 3, 2017, pp. 985-1005.
Sample Abstract 2
From the humanities.
Analyzing underground pulp fiction publications in Tanzania, this article makes an argument about the cultural significance of those publications
Emily Callaci. “Street Textuality: Socialism, Masculinity, and Urban Belonging in Tanzania’s Pulp Fiction Publishing Industry, 1975-1985.” Comparative Studies in Society and History , vol. 59, no. 1, 2017, pp. 183-210.
Sample Abstract/Summary 3
From the sciences.
Reporting a new method for reprogramming adult mouse fibroblasts into induced cardiac progenitor cells
Lalit, Pratik A., Max R. Salick, Daryl O. Nelson, Jayne M. Squirrell, Christina M. Shafer, Neel G. Patel, Imaan Saeed, Eric G. Schmuck, Yogananda S. Markandeya, Rachel Wong, Martin R. Lea, Kevin W. Eliceiri, Timothy A. Hacker, Wendy C. Crone, Michael Kyba, Daniel J. Garry, Ron Stewart, James A. Thomson, Karen M. Downs, Gary E. Lyons, and Timothy J. Kamp. “Lineage Reprogramming of Fibroblasts into Proliferative Induced Cardiac Progenitor Cells by Defined Factors.” Cell Stem Cell , vol. 18, 2016, pp. 354-367.
Sample Abstract 4, a Structured Abstract
Reporting results about the effectiveness of antibiotic therapy in managing acute bacterial sinusitis, from a rigorously controlled study
Note: This journal requires authors to organize their abstract into four specific sections, with strict word limits. Because the headings for this structured abstract are self-explanatory, we have chosen not to add annotations to this sample abstract.
Wald, Ellen R., David Nash, and Jens Eickhoff. “Effectiveness of Amoxicillin/Clavulanate Potassium in the Treatment of Acute Bacterial Sinusitis in Children.” Pediatrics , vol. 124, no. 1, 2009, pp. 9-15.
“OBJECTIVE: The role of antibiotic therapy in managing acute bacterial sinusitis (ABS) in children is controversial. The purpose of this study was to determine the effectiveness of high-dose amoxicillin/potassium clavulanate in the treatment of children diagnosed with ABS.
METHODS : This was a randomized, double-blind, placebo-controlled study. Children 1 to 10 years of age with a clinical presentation compatible with ABS were eligible for participation. Patients were stratified according to age (<6 or ≥6 years) and clinical severity and randomly assigned to receive either amoxicillin (90 mg/kg) with potassium clavulanate (6.4 mg/kg) or placebo. A symptom survey was performed on days 0, 1, 2, 3, 5, 7, 10, 20, and 30. Patients were examined on day 14. Children’s conditions were rated as cured, improved, or failed according to scoring rules.
RESULTS: Two thousand one hundred thirty-five children with respiratory complaints were screened for enrollment; 139 (6.5%) had ABS. Fifty-eight patients were enrolled, and 56 were randomly assigned. The mean age was 6630 months. Fifty (89%) patients presented with persistent symptoms, and 6 (11%) presented with nonpersistent symptoms. In 24 (43%) children, the illness was classified as mild, whereas in the remaining 32 (57%) children it was severe. Of the 28 children who received the antibiotic, 14 (50%) were cured, 4 (14%) were improved, 4(14%) experienced treatment failure, and 6 (21%) withdrew. Of the 28children who received placebo, 4 (14%) were cured, 5 (18%) improved, and 19 (68%) experienced treatment failure. Children receiving the antibiotic were more likely to be cured (50% vs 14%) and less likely to have treatment failure (14% vs 68%) than children receiving the placebo.
CONCLUSIONS : ABS is a common complication of viral upper respiratory infections. Amoxicillin/potassium clavulanate results in significantly more cures and fewer failures than placebo, according to parental report of time to resolution.” (9)
Some Excellent Advice about Writing Abstracts for Basic Science Research Papers, by Professor Adriano Aguzzi from the Institute of Neuropathology at the University of Zurich:
Academic and Professional Writing
This is an accordion element with a series of buttons that open and close related content panels.
Analysis Papers
Reading Poetry
A Short Guide to Close Reading for Literary Analysis
Using Literary Quotations
Play Reviews
Writing a Rhetorical Précis to Analyze Nonfiction Texts
Incorporating Interview Data
Grant Proposals
Planning and Writing a Grant Proposal: The Basics
Additional Resources for Grants and Proposal Writing
Job Materials and Application Essays
Writing Personal Statements for Ph.D. Programs
- Before you begin: useful tips for writing your essay
- Guided brainstorming exercises
- Get more help with your essay
- Frequently Asked Questions
Resume Writing Tips
CV Writing Tips
Cover Letters
Business Letters
Proposals and Dissertations
Resources for Proposal Writers
Resources for Dissertators
Research Papers
Planning and Writing Research Papers
Quoting and Paraphrasing
Writing Annotated Bibliographies
Creating Poster Presentations
Thank-You Notes
Advice for Students Writing Thank-You Notes to Donors
Reading for a Review
Critical Reviews
Writing a Review of Literature
Scientific Reports
Scientific Report Format
Sample Lab Assignment
Writing for the Web
Writing an Effective Blog Post
Writing for Social Media: A Guide for Academics
- Privacy Policy
Home » Research Paper Abstract – Writing Guide and Examples
Research Paper Abstract – Writing Guide and Examples
Table of Contents
Research Paper Abstract
Research Paper Abstract is a brief summary of a research pape r that describes the study’s purpose, methods, findings, and conclusions . It is often the first section of the paper that readers encounter, and its purpose is to provide a concise and accurate overview of the paper’s content. The typical length of an abstract is usually around 150-250 words, and it should be written in a concise and clear manner.
Research Paper Abstract Structure
The structure of a research paper abstract usually includes the following elements:
- Background or Introduction: Briefly describe the problem or research question that the study addresses.
- Methods : Explain the methodology used to conduct the study, including the participants, materials, and procedures.
- Results : Summarize the main findings of the study, including statistical analyses and key outcomes.
- Conclusions : Discuss the implications of the study’s findings and their significance for the field, as well as any limitations or future directions for research.
- Keywords : List a few keywords that describe the main topics or themes of the research.
How to Write Research Paper Abstract
Here are the steps to follow when writing a research paper abstract:
- Start by reading your paper: Before you write an abstract, you should have a complete understanding of your paper. Read through the paper carefully, making sure you understand the purpose, methods, results, and conclusions.
- Identify the key components : Identify the key components of your paper, such as the research question, methods used, results obtained, and conclusion reached.
- Write a draft: Write a draft of your abstract, using concise and clear language. Make sure to include all the important information, but keep it short and to the point. A good rule of thumb is to keep your abstract between 150-250 words.
- Use clear and concise language : Use clear and concise language to explain the purpose of your study, the methods used, the results obtained, and the conclusions drawn.
- Emphasize your findings: Emphasize your findings in the abstract, highlighting the key results and the significance of your study.
- Revise and edit: Once you have a draft, revise and edit it to ensure that it is clear, concise, and free from errors.
- Check the formatting: Finally, check the formatting of your abstract to make sure it meets the requirements of the journal or conference where you plan to submit it.
Research Paper Abstract Examples
Research Paper Abstract Examples could be following:
Title : “The Effectiveness of Cognitive-Behavioral Therapy for Treating Anxiety Disorders: A Meta-Analysis”
Abstract : This meta-analysis examines the effectiveness of cognitive-behavioral therapy (CBT) in treating anxiety disorders. Through the analysis of 20 randomized controlled trials, we found that CBT is a highly effective treatment for anxiety disorders, with large effect sizes across a range of anxiety disorders, including generalized anxiety disorder, panic disorder, and social anxiety disorder. Our findings support the use of CBT as a first-line treatment for anxiety disorders and highlight the importance of further research to identify the mechanisms underlying its effectiveness.
Title : “Exploring the Role of Parental Involvement in Children’s Education: A Qualitative Study”
Abstract : This qualitative study explores the role of parental involvement in children’s education. Through in-depth interviews with 20 parents of children in elementary school, we found that parental involvement takes many forms, including volunteering in the classroom, helping with homework, and communicating with teachers. We also found that parental involvement is influenced by a range of factors, including parent and child characteristics, school culture, and socio-economic status. Our findings suggest that schools and educators should prioritize building strong partnerships with parents to support children’s academic success.
Title : “The Impact of Exercise on Cognitive Function in Older Adults: A Systematic Review and Meta-Analysis”
Abstract : This paper presents a systematic review and meta-analysis of the existing literature on the impact of exercise on cognitive function in older adults. Through the analysis of 25 randomized controlled trials, we found that exercise is associated with significant improvements in cognitive function, particularly in the domains of executive function and attention. Our findings highlight the potential of exercise as a non-pharmacological intervention to support cognitive health in older adults.
When to Write Research Paper Abstract
The abstract of a research paper should typically be written after you have completed the main body of the paper. This is because the abstract is intended to provide a brief summary of the key points and findings of the research, and you can’t do that until you have completed the research and written about it in detail.
Once you have completed your research paper, you can begin writing your abstract. It is important to remember that the abstract should be a concise summary of your research paper, and should be written in a way that is easy to understand for readers who may not have expertise in your specific area of research.
Purpose of Research Paper Abstract
The purpose of a research paper abstract is to provide a concise summary of the key points and findings of a research paper. It is typically a brief paragraph or two that appears at the beginning of the paper, before the introduction, and is intended to give readers a quick overview of the paper’s content.
The abstract should include a brief statement of the research problem, the methods used to investigate the problem, the key results and findings, and the main conclusions and implications of the research. It should be written in a clear and concise manner, avoiding jargon and technical language, and should be understandable to a broad audience.
The abstract serves as a way to quickly and easily communicate the main points of a research paper to potential readers, such as academics, researchers, and students, who may be looking for information on a particular topic. It can also help researchers determine whether a paper is relevant to their own research interests and whether they should read the full paper.
About the author
Muhammad Hassan
Researcher, Academic Writer, Web developer
You may also like
APA Table of Contents – Format and Example
Tables in Research Paper – Types, Creating Guide...
Appendices – Writing Guide, Types and Examples
Research Contribution – Thesis Guide
Figures in Research Paper – Examples and Guide
Future Research – Thesis Guide
How to Write an Abstract (With Examples)
By Sarah Oakley
Table of Contents
What is an abstract in a paper, how long should an abstract be, 5 steps for writing an abstract, examples of an abstract, how prowritingaid can help you write an abstract.
If you are writing a scientific research paper or a book proposal, you need to know how to write an abstract, which summarizes the contents of the paper or book.
When researchers are looking for peer-reviewed papers to use in their studies, the first place they will check is the abstract to see if it applies to their work. Therefore, your abstract is one of the most important parts of your entire paper.
In this article, we’ll explain what an abstract is, what it should include, and how to write one.
An abstract is a concise summary of the details within a report. Some abstracts give more details than others, but the main things you’ll be talking about are why you conducted the research, what you did, and what the results show.
When a reader is deciding whether to read your paper completely, they will first look at the abstract. You need to be concise in your abstract and give the reader the most important information so they can determine if they want to read the whole paper.
Remember that an abstract is the last thing you’ll want to write for the research paper because it directly references parts of the report. If you haven’t written the report, you won’t know what to include in your abstract.
If you are writing a paper for a journal or an assignment, the publication or academic institution might have specific formatting rules for how long your abstract should be. However, if they don’t, most abstracts are between 150 and 300 words long.
A short word count means your writing has to be precise and without filler words or phrases. Once you’ve written a first draft, you can always use an editing tool, such as ProWritingAid, to identify areas where you can reduce words and increase readability.
If your abstract is over the word limit, and you’ve edited it but still can’t figure out how to reduce it further, your abstract might include some things that aren’t needed. Here’s a list of three elements you can remove from your abstract:
Discussion : You don’t need to go into detail about the findings of your research because your reader will find your discussion within the paper.
Definition of terms : Your readers are interested the field you are writing about, so they are likely to understand the terms you are using. If not, they can always look them up. Your readers do not expect you to give a definition of terms in your abstract.
References and citations : You can mention there have been studies that support or have inspired your research, but you do not need to give details as the reader will find them in your bibliography.
Good writing = better grades
ProWritingAid will help you improve the style, strength, and clarity of all your assignments.
If you’ve never written an abstract before, and you’re wondering how to write an abstract, we’ve got some steps for you to follow. It’s best to start with planning your abstract, so we’ve outlined the details you need to include in your plan before you write.
Remember to consider your audience when you’re planning and writing your abstract. They are likely to skim read your abstract, so you want to be sure your abstract delivers all the information they’re expecting to see at key points.
1. What Should an Abstract Include?
Abstracts have a lot of information to cover in a short number of words, so it’s important to know what to include. There are three elements that need to be present in your abstract:
Your context is the background for where your research sits within your field of study. You should briefly mention any previous scientific papers or experiments that have led to your hypothesis and how research develops in those studies.
Your hypothesis is your prediction of what your study will show. As you are writing your abstract after you have conducted your research, you should still include your hypothesis in your abstract because it shows the motivation for your paper.
Throughout your abstract, you also need to include keywords and phrases that will help researchers to find your article in the databases they’re searching. Make sure the keywords are specific to your field of study and the subject you’re reporting on, otherwise your article might not reach the relevant audience.
2. Can You Use First Person in an Abstract?
You might think that first person is too informal for a research paper, but it’s not. Historically, writers of academic reports avoided writing in first person to uphold the formality standards of the time. However, first person is more accepted in research papers in modern times.
If you’re still unsure whether to write in first person for your abstract, refer to any style guide rules imposed by the journal you’re writing for or your teachers if you are writing an assignment.
3. Abstract Structure
Some scientific journals have strict rules on how to structure an abstract, so it’s best to check those first. If you don’t have any style rules to follow, try using the IMRaD structure, which stands for Introduction, Methodology, Results, and Discussion.
Following the IMRaD structure, start with an introduction. The amount of background information you should include depends on your specific research area. Adding a broad overview gives you less room to include other details. Remember to include your hypothesis in this section.
The next part of your abstract should cover your methodology. Try to include the following details if they apply to your study:
What type of research was conducted?
How were the test subjects sampled?
What were the sample sizes?
What was done to each group?
How long was the experiment?
How was data recorded and interpreted?
Following the methodology, include a sentence or two about the results, which is where your reader will determine if your research supports or contradicts their own investigations.
The results are also where most people will want to find out what your outcomes were, even if they are just mildly interested in your research area. You should be specific about all the details but as concise as possible.
The last few sentences are your conclusion. It needs to explain how your findings affect the context and whether your hypothesis was correct. Include the primary take-home message, additional findings of importance, and perspective. Also explain whether there is scope for further research into the subject of your report.
Your conclusion should be honest and give the reader the ultimate message that your research shows. Readers trust the conclusion, so make sure you’re not fabricating the results of your research. Some readers won’t read your entire paper, but this section will tell them if it’s worth them referencing it in their own study.
4. How to Start an Abstract
The first line of your abstract should give your reader the context of your report by providing background information. You can use this sentence to imply the motivation for your research.
You don’t need to use a hook phrase or device in your first sentence to grab the reader’s attention. Your reader will look to establish relevance quickly, so readability and clarity are more important than trying to persuade the reader to read on.
5. How to Format an Abstract
Most abstracts use the same formatting rules, which help the reader identify the abstract so they know where to look for it.
Here’s a list of formatting guidelines for writing an abstract:
Stick to one paragraph
Use block formatting with no indentation at the beginning
Put your abstract straight after the title and acknowledgements pages
Use present or past tense, not future tense
There are two primary types of abstract you could write for your paper—descriptive and informative.
An informative abstract is the most common, and they follow the structure mentioned previously. They are longer than descriptive abstracts because they cover more details.
Descriptive abstracts differ from informative abstracts, as they don’t include as much discussion or detail. The word count for a descriptive abstract is between 50 and 150 words.
Here is an example of an informative abstract:
A growing trend exists for authors to employ a more informal writing style that uses “we” in academic writing to acknowledge one’s stance and engagement. However, few studies have compared the ways in which the first-person pronoun “we” is used in the abstracts and conclusions of empirical papers. To address this lacuna in the literature, this study conducted a systematic corpus analysis of the use of “we” in the abstracts and conclusions of 400 articles collected from eight leading electrical and electronic (EE) engineering journals. The abstracts and conclusions were extracted to form two subcorpora, and an integrated framework was applied to analyze and seek to explain how we-clusters and we-collocations were employed. Results revealed whether authors’ use of first-person pronouns partially depends on a journal policy. The trend of using “we” showed that a yearly increase occurred in the frequency of “we” in EE journal papers, as well as the existence of three “we-use” types in the article conclusions and abstracts: exclusive, inclusive, and ambiguous. Other possible “we-use” alternatives such as “I” and other personal pronouns were used very rarely—if at all—in either section. These findings also suggest that the present tense was used more in article abstracts, but the present perfect tense was the most preferred tense in article conclusions. Both research and pedagogical implications are proffered and critically discussed.
Wang, S., Tseng, W.-T., & Johanson, R. (2021). To We or Not to We: Corpus-Based Research on First-Person Pronoun Use in Abstracts and Conclusions. SAGE Open, 11(2).
Here is an example of a descriptive abstract:
From the 1850s to the present, considerable criminological attention has focused on the development of theoretically-significant systems for classifying crime. This article reviews and attempts to evaluate a number of these efforts, and we conclude that further work on this basic task is needed. The latter part of the article explicates a conceptual foundation for a crime pattern classification system, and offers a preliminary taxonomy of crime.
Farr, K. A., & Gibbons, D. C. (1990). Observations on the Development of Crime Categories. International Journal of Offender Therapy and Comparative Criminology, 34(3), 223–237.
If you want to ensure your abstract is grammatically correct and easy to read, you can use ProWritingAid to edit it. The software integrates with Microsoft Word, Google Docs, and most web browsers, so you can make the most of it wherever you’re writing your paper.
Before you edit with ProWritingAid, make sure the suggestions you are seeing are relevant for your document by changing the document type to “Abstract” within the Academic writing style section.
You can use the Readability report to check your abstract for places to improve the clarity of your writing. Some suggestions might show you where to remove words, which is great if you’re over your word count.
We hope the five steps and examples we’ve provided help you write a great abstract for your research paper.
Sarah Oakley
Get started with prowritingaid.
Drop us a line or let's stay in touch via:
Academic & Employability Skills
Subscribe to academic & employability skills.
Enter your email address to subscribe to this blog and receive notifications of new posts by email.
Email Address
Writing an abstract - a six point checklist (with samples)
Posted in: abstract , dissertations
The abstract is a vital part of any research paper. It is the shop front for your work, and the first stop for your reader. It should provide a clear and succinct summary of your study, and encourage your readers to read more. An effective abstract, therefore should answer the following questions:
- Why did you do this study or project?
- What did you do and how?
- What did you find?
- What do your findings mean?
So here's our run down of the key elements of a well-written abstract.
- Size - A succinct and well written abstract should be between approximately 100- 250 words.
- Background - An effective abstract usually includes some scene-setting information which might include what is already known about the subject, related to the paper in question (a few short sentences).
- Purpose - The abstract should also set out the purpose of your research, in other words, what is not known about the subject and hence what the study intended to examine (or what the paper seeks to present).
- Methods - The methods section should contain enough information to enable the reader to understand what was done, and how. It should include brief details of the research design, sample size, duration of study, and so on.
- Results - The results section is the most important part of the abstract. This is because readers who skim an abstract do so to learn about the findings of the study. The results section should therefore contain as much detail about the findings as the journal word count permits.
- Conclusion - This section should contain the most important take-home message of the study, expressed in a few precisely worded sentences. Usually, the finding highlighted here relates to the primary outcomes of the study. However, other important or unexpected findings should also be mentioned. It is also customary, but not essential, to express an opinion about the theoretical or practical implications of the findings, or the importance of their findings for the field. Thus, the conclusions may contain three elements:
- The primary take-home message.
- Any additional findings of importance.
- Implications for future studies.
Example Abstract 2: Engineering Development and validation of a three-dimensional finite element model of the pelvic bone.
Abstract from: Dalstra, M., Huiskes, R. and Van Erning, L., 1995. Development and validation of a three-dimensional finite element model of the pelvic bone. Journal of biomechanical engineering, 117(3), pp.272-278.
And finally... A word on abstract types and styles
Abstract types can differ according to subject discipline. You need to determine therefore which type of abstract you should include with your paper. Here are two of the most common types with examples.
Informative Abstract
The majority of abstracts are informative. While they still do not critique or evaluate a work, they do more than describe it. A good informative abstract acts as a surrogate for the work itself. That is, the researcher presents and explains all the main arguments and the important results and evidence in the paper. An informative abstract includes the information that can be found in a descriptive abstract [purpose, methods, scope] but it also includes the results and conclusions of the research and the recommendations of the author. The length varies according to discipline, but an informative abstract is usually no more than 300 words in length.
Descriptive Abstract A descriptive abstract indicates the type of information found in the work. It makes no judgements about the work, nor does it provide results or conclusions of the research. It does incorporate key words found in the text and may include the purpose, methods, and scope of the research. Essentially, the descriptive abstract only describes the work being summarised. Some researchers consider it an outline of the work, rather than a summary. Descriptive abstracts are usually very short, 100 words or less.
Adapted from Andrade C. How to write a good abstract for a scientific paper or conference presentation. Indian J Psychiatry. 2011 Apr;53(2):172-5. doi: 10.4103/0019-5545.82558. PMID: 21772657; PMCID: PMC3136027 .
Have you seen?
Share this:.
- Click to print (Opens in new window)
- Click to email a link to a friend (Opens in new window)
- Click to share on WhatsApp (Opens in new window)
- Click to share on LinkedIn (Opens in new window)
- Click to share on Twitter (Opens in new window)
- Click to share on Facebook (Opens in new window)
Click here to cancel reply.
- Email * (we won't publish this)
Write a response
Critical Writing
How you can be a better critical writer: going beyond description Have you ever handed in a piece of writing – an essay or report, for example – and got comments back from your tutor saying that it needs to...
Navigating the dissertation process: my tips for final years
Imagine for a moment... After months of hard work and research on a topic you're passionate about, the time has finally come to click the 'Submit' button on your dissertation. You've just completed your longest project to date as part...
8 ways to beat procrastination
Whether you’re writing an assignment or revising for exams, getting started can be hard. Fortunately, there’s lots you can do to turn procrastination into action.
When you choose to publish with PLOS, your research makes an impact. Make your work accessible to all, without restrictions, and accelerate scientific discovery with options like preprints and published peer review that make your work more Open.
- PLOS Biology
- PLOS Climate
- PLOS Complex Systems
- PLOS Computational Biology
- PLOS Digital Health
- PLOS Genetics
- PLOS Global Public Health
- PLOS Medicine
- PLOS Mental Health
- PLOS Neglected Tropical Diseases
- PLOS Pathogens
- PLOS Sustainability and Transformation
- PLOS Collections
- How to Write an Abstract
Expedite peer review, increase search-ability, and set the tone for your study
The abstract is your chance to let your readers know what they can expect from your article. Learn how to write a clear, and concise abstract that will keep your audience reading.
How your abstract impacts editorial evaluation and future readership
After the title , the abstract is the second-most-read part of your article. A good abstract can help to expedite peer review and, if your article is accepted for publication, it’s an important tool for readers to find and evaluate your work. Editors use your abstract when they first assess your article. Prospective reviewers see it when they decide whether to accept an invitation to review. Once published, the abstract gets indexed in PubMed and Google Scholar , as well as library systems and other popular databases. Like the title, your abstract influences keyword search results. Readers will use it to decide whether to read the rest of your article. Other researchers will use it to evaluate your work for inclusion in systematic reviews and meta-analysis. It should be a concise standalone piece that accurately represents your research.
What to include in an abstract
The main challenge you’ll face when writing your abstract is keeping it concise AND fitting in all the information you need. Depending on your subject area the journal may require a structured abstract following specific headings. A structured abstract helps your readers understand your study more easily. If your journal doesn’t require a structured abstract it’s still a good idea to follow a similar format, just present the abstract as one paragraph without headings.
Background or Introduction – What is currently known? Start with a brief, 2 or 3 sentence, introduction to the research area.
Objectives or Aims – What is the study and why did you do it? Clearly state the research question you’re trying to answer.
Methods – What did you do? Explain what you did and how you did it. Include important information about your methods, but avoid the low-level specifics. Some disciplines have specific requirements for abstract methods.
- CONSORT for randomized trials.
- STROBE for observational studies
- PRISMA for systematic reviews and meta-analyses
Results – What did you find? Briefly give the key findings of your study. Include key numeric data (including confidence intervals or p values), where possible.
Conclusions – What did you conclude? Tell the reader why your findings matter, and what this could mean for the ‘bigger picture’ of this area of research.
Writing tips
The main challenge you may find when writing your abstract is keeping it concise AND convering all the information you need to.
- Keep it concise and to the point. Most journals have a maximum word count, so check guidelines before you write the abstract to save time editing it later.
- Write for your audience. Are they specialists in your specific field? Are they cross-disciplinary? Are they non-specialists? If you’re writing for a general audience, or your research could be of interest to the public keep your language as straightforward as possible. If you’re writing in English, do remember that not all of your readers will necessarily be native English speakers.
- Focus on key results, conclusions and take home messages.
- Write your paper first, then create the abstract as a summary.
- Check the journal requirements before you write your abstract, eg. required subheadings.
- Include keywords or phrases to help readers search for your work in indexing databases like PubMed or Google Scholar.
- Double and triple check your abstract for spelling and grammar errors. These kind of errors can give potential reviewers the impression that your research isn’t sound, and can make it easier to find reviewers who accept the invitation to review your manuscript. Your abstract should be a taste of what is to come in the rest of your article.
Don’t
- Sensationalize your research.
- Speculate about where this research might lead in the future.
- Use abbreviations or acronyms (unless absolutely necessary or unless they’re widely known, eg. DNA).
- Repeat yourself unnecessarily, eg. “Methods: We used X technique. Results: Using X technique, we found…”
- Contradict anything in the rest of your manuscript.
- Include content that isn’t also covered in the main manuscript.
- Include citations or references.
Tip: How to edit your work
Editing is challenging, especially if you are acting as both a writer and an editor. Read our guidelines for advice on how to refine your work, including useful tips for setting your intentions, re-review, and consultation with colleagues.
- How to Write a Great Title
- How to Write Your Methods
- How to Report Statistics
- How to Write Discussions and Conclusions
- How to Edit Your Work
The contents of the Peer Review Center are also available as a live, interactive training session, complete with slides, talking points, and activities. …
The contents of the Writing Center are also available as a live, interactive training session, complete with slides, talking points, and activities. …
There’s a lot to consider when deciding where to submit your work. Learn how to choose a journal that will help your study reach its audience, while reflecting your values as a researcher…
- Search Menu
Sign in through your institution
- Browse content in Arts and Humanities
- Browse content in Archaeology
- Anglo-Saxon and Medieval Archaeology
- Archaeological Methodology and Techniques
- Archaeology by Region
- Archaeology of Religion
- Archaeology of Trade and Exchange
- Biblical Archaeology
- Contemporary and Public Archaeology
- Environmental Archaeology
- Historical Archaeology
- History and Theory of Archaeology
- Industrial Archaeology
- Landscape Archaeology
- Mortuary Archaeology
- Prehistoric Archaeology
- Underwater Archaeology
- Urban Archaeology
- Zooarchaeology
- Browse content in Architecture
- Architectural Structure and Design
- History of Architecture
- Residential and Domestic Buildings
- Theory of Architecture
- Browse content in Art
- Art Subjects and Themes
- History of Art
- Industrial and Commercial Art
- Theory of Art
- Biographical Studies
- Byzantine Studies
- Browse content in Classical Studies
- Classical History
- Classical Philosophy
- Classical Mythology
- Classical Numismatics
- Classical Literature
- Classical Reception
- Classical Art and Architecture
- Classical Oratory and Rhetoric
- Greek and Roman Papyrology
- Greek and Roman Epigraphy
- Greek and Roman Law
- Greek and Roman Archaeology
- Late Antiquity
- Religion in the Ancient World
- Social History
- Digital Humanities
- Browse content in History
- Colonialism and Imperialism
- Diplomatic History
- Environmental History
- Genealogy, Heraldry, Names, and Honours
- Genocide and Ethnic Cleansing
- Historical Geography
- History by Period
- History of Emotions
- History of Agriculture
- History of Education
- History of Gender and Sexuality
- Industrial History
- Intellectual History
- International History
- Labour History
- Legal and Constitutional History
- Local and Family History
- Maritime History
- Military History
- National Liberation and Post-Colonialism
- Oral History
- Political History
- Public History
- Regional and National History
- Revolutions and Rebellions
- Slavery and Abolition of Slavery
- Social and Cultural History
- Theory, Methods, and Historiography
- Urban History
- World History
- Browse content in Language Teaching and Learning
- Language Learning (Specific Skills)
- Language Teaching Theory and Methods
- Browse content in Linguistics
- Applied Linguistics
- Cognitive Linguistics
- Computational Linguistics
- Forensic Linguistics
- Grammar, Syntax and Morphology
- Historical and Diachronic Linguistics
- History of English
- Language Evolution
- Language Reference
- Language Acquisition
- Language Variation
- Language Families
- Lexicography
- Linguistic Anthropology
- Linguistic Theories
- Linguistic Typology
- Phonetics and Phonology
- Psycholinguistics
- Sociolinguistics
- Translation and Interpretation
- Writing Systems
- Browse content in Literature
- Bibliography
- Children's Literature Studies
- Literary Studies (Romanticism)
- Literary Studies (American)
- Literary Studies (Asian)
- Literary Studies (European)
- Literary Studies (Eco-criticism)
- Literary Studies (Modernism)
- Literary Studies - World
- Literary Studies (1500 to 1800)
- Literary Studies (19th Century)
- Literary Studies (20th Century onwards)
- Literary Studies (African American Literature)
- Literary Studies (British and Irish)
- Literary Studies (Early and Medieval)
- Literary Studies (Fiction, Novelists, and Prose Writers)
- Literary Studies (Gender Studies)
- Literary Studies (Graphic Novels)
- Literary Studies (History of the Book)
- Literary Studies (Plays and Playwrights)
- Literary Studies (Poetry and Poets)
- Literary Studies (Postcolonial Literature)
- Literary Studies (Queer Studies)
- Literary Studies (Science Fiction)
- Literary Studies (Travel Literature)
- Literary Studies (War Literature)
- Literary Studies (Women's Writing)
- Literary Theory and Cultural Studies
- Mythology and Folklore
- Shakespeare Studies and Criticism
- Browse content in Media Studies
- Browse content in Music
- Applied Music
- Dance and Music
- Ethics in Music
- Ethnomusicology
- Gender and Sexuality in Music
- Medicine and Music
- Music Cultures
- Music and Media
- Music and Religion
- Music and Culture
- Music Education and Pedagogy
- Music Theory and Analysis
- Musical Scores, Lyrics, and Libretti
- Musical Structures, Styles, and Techniques
- Musicology and Music History
- Performance Practice and Studies
- Race and Ethnicity in Music
- Sound Studies
- Browse content in Performing Arts
- Browse content in Philosophy
- Aesthetics and Philosophy of Art
- Epistemology
- Feminist Philosophy
- History of Western Philosophy
- Meta-Philosophy
- Metaphysics
- Moral Philosophy
- Non-Western Philosophy
- Philosophy of Language
- Philosophy of Mind
- Philosophy of Perception
- Philosophy of Science
- Philosophy of Action
- Philosophy of Law
- Philosophy of Religion
- Philosophy of Mathematics and Logic
- Practical Ethics
- Social and Political Philosophy
- Browse content in Religion
- Biblical Studies
- Christianity
- East Asian Religions
- History of Religion
- Judaism and Jewish Studies
- Qumran Studies
- Religion and Education
- Religion and Health
- Religion and Politics
- Religion and Science
- Religion and Law
- Religion and Art, Literature, and Music
- Religious Studies
- Browse content in Society and Culture
- Cookery, Food, and Drink
- Cultural Studies
- Customs and Traditions
- Ethical Issues and Debates
- Hobbies, Games, Arts and Crafts
- Natural world, Country Life, and Pets
- Popular Beliefs and Controversial Knowledge
- Sports and Outdoor Recreation
- Technology and Society
- Travel and Holiday
- Visual Culture
- Browse content in Law
- Arbitration
- Browse content in Company and Commercial Law
- Commercial Law
- Company Law
- Browse content in Comparative Law
- Systems of Law
- Competition Law
- Browse content in Constitutional and Administrative Law
- Government Powers
- Judicial Review
- Local Government Law
- Military and Defence Law
- Parliamentary and Legislative Practice
- Construction Law
- Contract Law
- Browse content in Criminal Law
- Criminal Procedure
- Criminal Evidence Law
- Sentencing and Punishment
- Employment and Labour Law
- Environment and Energy Law
- Browse content in Financial Law
- Banking Law
- Insolvency Law
- History of Law
- Human Rights and Immigration
- Intellectual Property Law
- Browse content in International Law
- Private International Law and Conflict of Laws
- Public International Law
- IT and Communications Law
- Jurisprudence and Philosophy of Law
- Law and Politics
- Law and Society
- Browse content in Legal System and Practice
- Courts and Procedure
- Legal Skills and Practice
- Legal System - Costs and Funding
- Primary Sources of Law
- Regulation of Legal Profession
- Medical and Healthcare Law
- Browse content in Policing
- Criminal Investigation and Detection
- Police and Security Services
- Police Procedure and Law
- Police Regional Planning
- Browse content in Property Law
- Personal Property Law
- Restitution
- Study and Revision
- Terrorism and National Security Law
- Browse content in Trusts Law
- Wills and Probate or Succession
- Browse content in Medicine and Health
- Browse content in Allied Health Professions
- Arts Therapies
- Clinical Science
- Dietetics and Nutrition
- Occupational Therapy
- Operating Department Practice
- Physiotherapy
- Radiography
- Speech and Language Therapy
- Browse content in Anaesthetics
- General Anaesthesia
- Clinical Neuroscience
- Browse content in Clinical Medicine
- Acute Medicine
- Cardiovascular Medicine
- Clinical Genetics
- Clinical Pharmacology and Therapeutics
- Dermatology
- Endocrinology and Diabetes
- Gastroenterology
- Genito-urinary Medicine
- Geriatric Medicine
- Infectious Diseases
- Medical Toxicology
- Medical Oncology
- Pain Medicine
- Palliative Medicine
- Rehabilitation Medicine
- Respiratory Medicine and Pulmonology
- Rheumatology
- Sleep Medicine
- Sports and Exercise Medicine
- Community Medical Services
- Critical Care
- Emergency Medicine
- Forensic Medicine
- Haematology
- History of Medicine
- Browse content in Medical Skills
- Clinical Skills
- Communication Skills
- Nursing Skills
- Surgical Skills
- Browse content in Medical Dentistry
- Oral and Maxillofacial Surgery
- Paediatric Dentistry
- Restorative Dentistry and Orthodontics
- Surgical Dentistry
- Medical Ethics
- Medical Statistics and Methodology
- Browse content in Neurology
- Clinical Neurophysiology
- Neuropathology
- Nursing Studies
- Browse content in Obstetrics and Gynaecology
- Gynaecology
- Occupational Medicine
- Ophthalmology
- Otolaryngology (ENT)
- Browse content in Paediatrics
- Neonatology
- Browse content in Pathology
- Chemical Pathology
- Clinical Cytogenetics and Molecular Genetics
- Histopathology
- Medical Microbiology and Virology
- Patient Education and Information
- Browse content in Pharmacology
- Psychopharmacology
- Browse content in Popular Health
- Caring for Others
- Complementary and Alternative Medicine
- Self-help and Personal Development
- Browse content in Preclinical Medicine
- Cell Biology
- Molecular Biology and Genetics
- Reproduction, Growth and Development
- Primary Care
- Professional Development in Medicine
- Browse content in Psychiatry
- Addiction Medicine
- Child and Adolescent Psychiatry
- Forensic Psychiatry
- Learning Disabilities
- Old Age Psychiatry
- Psychotherapy
- Browse content in Public Health and Epidemiology
- Epidemiology
- Public Health
- Browse content in Radiology
- Clinical Radiology
- Interventional Radiology
- Nuclear Medicine
- Radiation Oncology
- Reproductive Medicine
- Browse content in Surgery
- Cardiothoracic Surgery
- Gastro-intestinal and Colorectal Surgery
- General Surgery
- Neurosurgery
- Paediatric Surgery
- Peri-operative Care
- Plastic and Reconstructive Surgery
- Surgical Oncology
- Transplant Surgery
- Trauma and Orthopaedic Surgery
- Vascular Surgery
- Browse content in Science and Mathematics
- Browse content in Biological Sciences
- Aquatic Biology
- Biochemistry
- Bioinformatics and Computational Biology
- Developmental Biology
- Ecology and Conservation
- Evolutionary Biology
- Genetics and Genomics
- Microbiology
- Molecular and Cell Biology
- Natural History
- Plant Sciences and Forestry
- Research Methods in Life Sciences
- Structural Biology
- Systems Biology
- Zoology and Animal Sciences
- Browse content in Chemistry
- Analytical Chemistry
- Computational Chemistry
- Crystallography
- Environmental Chemistry
- Industrial Chemistry
- Inorganic Chemistry
- Materials Chemistry
- Medicinal Chemistry
- Mineralogy and Gems
- Organic Chemistry
- Physical Chemistry
- Polymer Chemistry
- Study and Communication Skills in Chemistry
- Theoretical Chemistry
- Browse content in Computer Science
- Artificial Intelligence
- Computer Architecture and Logic Design
- Game Studies
- Human-Computer Interaction
- Mathematical Theory of Computation
- Programming Languages
- Software Engineering
- Systems Analysis and Design
- Virtual Reality
- Browse content in Computing
- Business Applications
- Computer Security
- Computer Games
- Computer Networking and Communications
- Digital Lifestyle
- Graphical and Digital Media Applications
- Operating Systems
- Browse content in Earth Sciences and Geography
- Atmospheric Sciences
- Environmental Geography
- Geology and the Lithosphere
- Maps and Map-making
- Meteorology and Climatology
- Oceanography and Hydrology
- Palaeontology
- Physical Geography and Topography
- Regional Geography
- Soil Science
- Urban Geography
- Browse content in Engineering and Technology
- Agriculture and Farming
- Biological Engineering
- Civil Engineering, Surveying, and Building
- Electronics and Communications Engineering
- Energy Technology
- Engineering (General)
- Environmental Science, Engineering, and Technology
- History of Engineering and Technology
- Mechanical Engineering and Materials
- Technology of Industrial Chemistry
- Transport Technology and Trades
- Browse content in Environmental Science
- Applied Ecology (Environmental Science)
- Conservation of the Environment (Environmental Science)
- Environmental Sustainability
- Environmentalist Thought and Ideology (Environmental Science)
- Management of Land and Natural Resources (Environmental Science)
- Natural Disasters (Environmental Science)
- Nuclear Issues (Environmental Science)
- Pollution and Threats to the Environment (Environmental Science)
- Social Impact of Environmental Issues (Environmental Science)
- History of Science and Technology
- Browse content in Materials Science
- Ceramics and Glasses
- Composite Materials
- Metals, Alloying, and Corrosion
- Nanotechnology
- Browse content in Mathematics
- Applied Mathematics
- Biomathematics and Statistics
- History of Mathematics
- Mathematical Education
- Mathematical Finance
- Mathematical Analysis
- Numerical and Computational Mathematics
- Probability and Statistics
- Pure Mathematics
- Browse content in Neuroscience
- Cognition and Behavioural Neuroscience
- Development of the Nervous System
- Disorders of the Nervous System
- History of Neuroscience
- Invertebrate Neurobiology
- Molecular and Cellular Systems
- Neuroendocrinology and Autonomic Nervous System
- Neuroscientific Techniques
- Sensory and Motor Systems
- Browse content in Physics
- Astronomy and Astrophysics
- Atomic, Molecular, and Optical Physics
- Biological and Medical Physics
- Classical Mechanics
- Computational Physics
- Condensed Matter Physics
- Electromagnetism, Optics, and Acoustics
- History of Physics
- Mathematical and Statistical Physics
- Measurement Science
- Nuclear Physics
- Particles and Fields
- Plasma Physics
- Quantum Physics
- Relativity and Gravitation
- Semiconductor and Mesoscopic Physics
- Browse content in Psychology
- Affective Sciences
- Clinical Psychology
- Cognitive Psychology
- Cognitive Neuroscience
- Criminal and Forensic Psychology
- Developmental Psychology
- Educational Psychology
- Evolutionary Psychology
- Health Psychology
- History and Systems in Psychology
- Music Psychology
- Neuropsychology
- Organizational Psychology
- Psychological Assessment and Testing
- Psychology of Human-Technology Interaction
- Psychology Professional Development and Training
- Research Methods in Psychology
- Social Psychology
- Browse content in Social Sciences
- Browse content in Anthropology
- Anthropology of Religion
- Human Evolution
- Medical Anthropology
- Physical Anthropology
- Regional Anthropology
- Social and Cultural Anthropology
- Theory and Practice of Anthropology
- Browse content in Business and Management
- Business Ethics
- Business Strategy
- Business History
- Business and Technology
- Business and Government
- Business and the Environment
- Comparative Management
- Corporate Governance
- Corporate Social Responsibility
- Entrepreneurship
- Health Management
- Human Resource Management
- Industrial and Employment Relations
- Industry Studies
- Information and Communication Technologies
- International Business
- Knowledge Management
- Management and Management Techniques
- Operations Management
- Organizational Theory and Behaviour
- Pensions and Pension Management
- Public and Nonprofit Management
- Social Issues in Business and Management
- Strategic Management
- Supply Chain Management
- Browse content in Criminology and Criminal Justice
- Criminal Justice
- Criminology
- Forms of Crime
- International and Comparative Criminology
- Youth Violence and Juvenile Justice
- Development Studies
- Browse content in Economics
- Agricultural, Environmental, and Natural Resource Economics
- Asian Economics
- Behavioural Finance
- Behavioural Economics and Neuroeconomics
- Econometrics and Mathematical Economics
- Economic History
- Economic Systems
- Economic Methodology
- Economic Development and Growth
- Financial Markets
- Financial Institutions and Services
- General Economics and Teaching
- Health, Education, and Welfare
- History of Economic Thought
- International Economics
- Labour and Demographic Economics
- Law and Economics
- Macroeconomics and Monetary Economics
- Microeconomics
- Public Economics
- Urban, Rural, and Regional Economics
- Welfare Economics
- Browse content in Education
- Adult Education and Continuous Learning
- Care and Counselling of Students
- Early Childhood and Elementary Education
- Educational Equipment and Technology
- Educational Research Methodology
- Educational Strategies and Policy
- Higher and Further Education
- Organization and Management of Education
- Philosophy and Theory of Education
- Schools Studies
- Secondary Education
- Teaching of a Specific Subject
- Teaching of Specific Groups and Special Educational Needs
- Teaching Skills and Techniques
- Browse content in Environment
- Applied Ecology (Social Science)
- Climate Change
- Conservation of the Environment (Social Science)
- Environmentalist Thought and Ideology (Social Science)
- Management of Land and Natural Resources (Social Science)
- Natural Disasters (Environment)
- Pollution and Threats to the Environment (Social Science)
- Social Impact of Environmental Issues (Social Science)
- Sustainability
- Browse content in Human Geography
- Cultural Geography
- Economic Geography
- Political Geography
- Browse content in Interdisciplinary Studies
- Communication Studies
- Museums, Libraries, and Information Sciences
- Browse content in Politics
- African Politics
- Asian Politics
- Chinese Politics
- Comparative Politics
- Conflict Politics
- Elections and Electoral Studies
- Environmental Politics
- Ethnic Politics
- European Union
- Foreign Policy
- Gender and Politics
- Human Rights and Politics
- Indian Politics
- International Relations
- International Organization (Politics)
- Irish Politics
- Latin American Politics
- Middle Eastern Politics
- Political Behaviour
- Political Economy
- Political Institutions
- Political Methodology
- Political Communication
- Political Philosophy
- Political Sociology
- Political Theory
- Politics and Law
- Politics of Development
- Public Policy
- Public Administration
- Qualitative Political Methodology
- Quantitative Political Methodology
- Regional Political Studies
- Russian Politics
- Security Studies
- State and Local Government
- UK Politics
- US Politics
- Browse content in Regional and Area Studies
- African Studies
- Asian Studies
- East Asian Studies
- Japanese Studies
- Latin American Studies
- Middle Eastern Studies
- Native American Studies
- Scottish Studies
- Browse content in Research and Information
- Research Methods
- Browse content in Social Work
- Addictions and Substance Misuse
- Adoption and Fostering
- Care of the Elderly
- Child and Adolescent Social Work
- Couple and Family Social Work
- Direct Practice and Clinical Social Work
- Emergency Services
- Human Behaviour and the Social Environment
- International and Global Issues in Social Work
- Mental and Behavioural Health
- Social Justice and Human Rights
- Social Policy and Advocacy
- Social Work and Crime and Justice
- Social Work Macro Practice
- Social Work Practice Settings
- Social Work Research and Evidence-based Practice
- Welfare and Benefit Systems
- Browse content in Sociology
- Childhood Studies
- Community Development
- Comparative and Historical Sociology
- Disability Studies
- Economic Sociology
- Gender and Sexuality
- Gerontology and Ageing
- Health, Illness, and Medicine
- Marriage and the Family
- Migration Studies
- Occupations, Professions, and Work
- Organizations
- Population and Demography
- Race and Ethnicity
- Social Theory
- Social Movements and Social Change
- Social Research and Statistics
- Social Stratification, Inequality, and Mobility
- Sociology of Religion
- Sociology of Education
- Sport and Leisure
- Urban and Rural Studies
- Browse content in Warfare and Defence
- Defence Strategy, Planning, and Research
- Land Forces and Warfare
- Military Administration
- Military Life and Institutions
- Naval Forces and Warfare
- Other Warfare and Defence Issues
- Peace Studies and Conflict Resolution
- Weapons and Equipment
- < Previous chapter
- Next chapter >
11 Writing an Informative Abstract
- Published: September 2024
- Cite Icon Cite
- Permissions Icon Permissions
The abstract of a scientific report may be an important factor for determining whether an article will be read and is an important entry point in the editorial evaluation of the manuscript. This chapter provides guidance for how to develop a well-prepared abstract that reports the main results and presents the take-home message of the study in a clear, concise, and efficient manner. This chapter addresses general principles, as well as specific components and abstract sections. Depending on the journal, these sections may include the importance (or background), objective, design, setting, participants, interventions or exposures, main outcome and measures, results, and conclusions and relevance.
Signed in as
Institutional accounts.
- GoogleCrawler [DO NOT DELETE]
- Google Scholar Indexing
Personal account
- Sign in with email/username & password
- Get email alerts
- Save searches
- Purchase content
- Activate your purchase/trial code
- Add your ORCID iD
Institutional access
Sign in with a library card.
- Sign in with username/password
- Recommend to your librarian
- Institutional account management
- Get help with access
Access to content on Oxford Academic is often provided through institutional subscriptions and purchases. If you are a member of an institution with an active account, you may be able to access content in one of the following ways:
IP based access
Typically, access is provided across an institutional network to a range of IP addresses. This authentication occurs automatically, and it is not possible to sign out of an IP authenticated account.
Choose this option to get remote access when outside your institution. Shibboleth/Open Athens technology is used to provide single sign-on between your institution’s website and Oxford Academic.
- Click Sign in through your institution.
- Select your institution from the list provided, which will take you to your institution's website to sign in.
- When on the institution site, please use the credentials provided by your institution. Do not use an Oxford Academic personal account.
- Following successful sign in, you will be returned to Oxford Academic.
If your institution is not listed or you cannot sign in to your institution’s website, please contact your librarian or administrator.
Enter your library card number to sign in. If you cannot sign in, please contact your librarian.
Society Members
Society member access to a journal is achieved in one of the following ways:
Sign in through society site
Many societies offer single sign-on between the society website and Oxford Academic. If you see ‘Sign in through society site’ in the sign in pane within a journal:
- Click Sign in through society site.
- When on the society site, please use the credentials provided by that society. Do not use an Oxford Academic personal account.
If you do not have a society account or have forgotten your username or password, please contact your society.
Sign in using a personal account
Some societies use Oxford Academic personal accounts to provide access to their members. See below.
A personal account can be used to get email alerts, save searches, purchase content, and activate subscriptions.
Some societies use Oxford Academic personal accounts to provide access to their members.
Viewing your signed in accounts
Click the account icon in the top right to:
- View your signed in personal account and access account management features.
- View the institutional accounts that are providing access.
Signed in but can't access content
Oxford Academic is home to a wide variety of products. The institutional subscription may not cover the content that you are trying to access. If you believe you should have access to that content, please contact your librarian.
For librarians and administrators, your personal account also provides access to institutional account management. Here you will find options to view and activate subscriptions, manage institutional settings and access options, access usage statistics, and more.
Our books are available by subscription or purchase to libraries and institutions.
- About Oxford Academic
- Publish journals with us
- University press partners
- What we publish
- New features
- Open access
- Rights and permissions
- Accessibility
- Advertising
- Media enquiries
- Oxford University Press
- Oxford Languages
- University of Oxford
Oxford University Press is a department of the University of Oxford. It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide
- Copyright © 2024 Oxford University Press
- Cookie settings
- Cookie policy
- Privacy policy
- Legal notice
This Feature Is Available To Subscribers Only
Sign In or Create an Account
This PDF is available to Subscribers Only
For full access to this pdf, sign in to an existing account, or purchase an annual subscription.
Purdue Online Writing Lab Purdue OWL® College of Liberal Arts
Welcome to the Purdue OWL
This page is brought to you by the OWL at Purdue University. When printing this page, you must include the entire legal notice.
Copyright ©1995-2018 by The Writing Lab & The OWL at Purdue and Purdue University. All rights reserved. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission. Use of this site constitutes acceptance of our terms and conditions of fair use.
Scholars often write abstracts for various applications: conference presentations may require an abstract or other short summary for a program; journal articles almost always require abstracts; invited talks and lectures are often advertised using an abstract. While the application may necessarily change the length of the abstract (a conference program may only allow for 50-75 words, for instance), the purpose and structure remains fairly constant.
Abstracts are generally kept brief (approximately 150-200 words). They differ by field, but in general, they need to summarize the article so that readers can decide if it is relevant to their work. The typical abstract includes these elements:
- A statement of the problem and objectives
- A statement of the significance of the work
- A summary of employed methods or your research approach
- A summary of findings or conclusions of the study
- A description of the implications of the findings
Regardless of field, abstract authors should explain the purpose of the work, methods used, the results and the conclusions that can be drawn. However, each field purports slightly different ways to structure the abstract. A reliable strategy is to write the abstract as a condensed version of your article, with 1-2 sentences summarizing each major section. This means that in many of the sciences and a large portion of the humanities, abstracts follow a version of the IMRAD structure: Introduction, Methods, Results, and Discussion.
Most scientific journals require authors to submit such abstracts. It is generally advisable to write the abstract in the English language. That is because most papers in other languages, especially Asian nations, tend to publish an English abstract with common search engines, such as, the MLA site.
Example Abstract
This example abstract follows the IMRAD structure closely. The first two sentences are the introduction and background information. Sentences 3-5 describe the methods used in the study. Sentence 6 summarizes the results, while the last two sentences summarize the discussion and conclusion of the study; they also indicate the significance of the results.
Usability and User-Centered Theory for 21 st Century OWLs — by Dana Lynn Driscoll, H. Allen Brizee, Michael Salvo, and Morgan Sousa from The Handbook of Research on Virtual Workplaces and the New Nature of Business Practices . Eds. Kirk St. Amant and Pavel Zemlansky. Hershey, PA: Idea Group Publishing, 2008.
This article describes results of usability research conducted on the Purdue Online Writing Lab (OWL). The Purdue OWL is an information-rich educational website that provides free writing resources to users worldwide. Researchers conducted two generations of usability tests. In the first test, participants were asked to navigate the OWL and answer questions. Results of the first test and user-centered scholarship indicated that a more user-centered focus would improve usability. The second test asked participants to answer writing-related questions using both the OWL website and a user-centered OWL prototype. Participants took significantly less time to find information using the prototype and reported a more positive response to the user-centered prototype than the original OWL. Researchers conclude that a user-centered website is more effective and can be a model for information-rich online resources. Researchers also conclude that usability research can be a productive source of ideas, underscoring the need for participatory invention.
Magnum Proofreading Services
Writing an Abstract for a Research Paper: Guidelines, Examples, and Templates
There are six steps to writing a standard abstract. (1) Begin with a broad statement about your topic. Then, (2) state the problem or knowledge gap related to this topic that your study explores. After that, (3) describe what specific aspect of this problem you investigated, and (4) briefly explain how you went about doing this. After that, (5) describe the most meaningful outcome(s) of your study. Finally, (6) close your abstract by explaining the broad implication(s) of your findings.
In this article, I present step-by-step guidelines for writing an abstract for an academic paper. These guidelines are fo llowed by an example of a full abstract that follows these guidelines and a few fill-in-the-blank templates that you can use to write your own abstract.
Guidelines for Writing an Abstract
The basic structure of an abstract is illustrated below.
A standard abstract starts with a very general statement and becomes more specific with each sentence that follows until once again making a broad statement about the study’s implications at the end. Altogether, a standard abstract has six functions, which are described in detail below.
Start by making a broad statement about your topic.
The first sentence of your abstract should briefly describe a problem that is of interest to your readers. When writing this first sentence, you should think about who comprises your target audience and use terms that will appeal to this audience. If your opening sentence is too broad, it might lose the attention of potential readers because they will not know if your study is relevant to them.
Too broad : Maintaining an ideal workplace environment has a positive effect on employees.
The sentence above is so broad that it will not grab the reader’s attention. While it gives the reader some idea of the area of study, it doesn’t provide any details about the author’s topic within their research area. This can be fixed by inserting some keywords related to the topic (these are underlined in the revised example below).
Improved : Keeping the workplace environment at an ideal temperature positively affects the overall health of employees.
The revised sentence is much better, as it expresses two points about the research topic—namely, (i) what aspect of workplace environment was studied, (ii) what aspect of employees was observed. The mention of these aspects of the research will draw the attention of readers who are interested in them.
Describe the general problem that your paper addresses.
After describing your topic in the first sentence, you can then explain what aspect of this topic has motivated your research. Often, authors use this part of the abstract to describe the research gap that they identified and aimed to fill. These types of sentences are often characterized by the use of words such as “however,” “although,” “despite,” and so on.
However, a comprehensive understanding of how different workplace bullying experiences are associated with absenteeism is currently lacking.
The above example is typical of a sentence describing the problem that a study intends to tackle. The author has noticed that there is a gap in the research, and they briefly explain this gap here.
Although it has been established that quantity and quality of sleep can affect different types of task performance and personal health, the interactions between sleep habits and workplace behaviors have received very little attention.
The example above illustrates a case in which the author has accomplished two tasks with one sentence. The first part of the sentence (up until the comma) mentions the general topic that the research fits into, while the second part (after the comma) describes the general problem that the research addresses.
Express the specific problem investigated in your paper.
After describing the general problem that motivated your research, the next sentence should express the specific aspect of the problem that you investigated. Sentences of this type are often indicated by the use of phrases like “the purpose of this research is to,” “this paper is intended to,” or “this work aims to.”
Uninformative : However, a comprehensive understanding of how different workplace bullying experiences are associated with absenteeism is currently lacking. The present article aimed to provide new insights into the relationship between workplace bullying and absenteeism .
The second sentence in the above example is a mere rewording of the first sentence. As such, it adds nothing to the abstract. The second sentence should be more specific than the preceding one.
Improved : However, a comprehensive understanding of how different workplace bullying experiences are associated with absenteeism is currently lacking. The present article aimed to define various subtypes of workplace bullying and determine which subtypes tend to lead to absenteeism .
The second sentence of this passage is much more informative than in the previous example. This sentence lets the reader know exactly what they can expect from the full research article.
Explain how you attempted to resolve your study’s specific problem.
In this part of your abstract, you should attempt to describe your study’s methodology in one or two sentences. As such, you must be sure to include only the most important information about your method. At the same time, you must also be careful not to be too vague.
Too vague : We conducted multiple tests to examine changes in various factors related to well-being.
This description of the methodology is too vague. Instead of merely mentioning “tests” and “factors,” the author should note which specific tests were run and which factors were assessed.
Improved : Using data from BHIP completers, we conducted multiple one-way multivariate analyses of variance and follow-up univariate t-tests to examine changes in physical and mental health, stress, energy levels, social satisfaction, self-efficacy, and quality of life.
This sentence is very well-written. It packs a lot of specific information about the method into a single sentence. Also, it does not describe more details than are needed for an abstract.
Briefly tell the reader what you found by carrying out your study.
This is the most important part of the abstract—the other sentences in the abstract are there to explain why this one is relevant. When writing this sentence, imagine that someone has asked you, “What did you find in your research?” and that you need to answer them in one or two sentences.
Too vague : Consistently poor sleepers had more health risks and medical conditions than consistently optimal sleepers.
This sentence is okay, but it would be helpful to let the reader know which health risks and medical conditions were related to poor sleeping habits.
Improved : Consistently poor sleepers were more likely than consistently optimal sleepers to suffer from chronic abdominal pain, and they were at a higher risk for diabetes and heart disease.
This sentence is better, as the specific health conditions are named.
Finally, describe the major implication(s) of your study.
Most abstracts end with a short sentence that explains the main takeaway(s) that you want your audience to gain from reading your paper. Often, this sentence is addressed to people in power (e.g., employers, policymakers), and it recommends a course of action that such people should take based on the results.
Too broad : Employers may wish to make use of strategies that increase employee health.
This sentence is too broad to be useful. It does not give employers a starting point to implement a change.
Improved : Employers may wish to incorporate sleep education initiatives as part of their overall health and wellness strategies.
This sentence is better than the original, as it provides employers with a starting point—specifically, it invites employers to look up information on sleep education programs.
Abstract Example
The abstract produced here is from a paper published in Electronic Commerce Research and Applications . I have made slight alterations to the abstract so that this example fits the guidelines given in this article.
(1) Gamification can strengthen enjoyment and productivity in the workplace. (2) Despite this, research on gamification in the work context is still limited. (3) In this study, we investigated the effect of gamification on the workplace enjoyment and productivity of employees by comparing employees with leadership responsibilities to those without leadership responsibilities. (4) Work-related tasks were gamified using the habit-tracking game Habitica, and data from 114 employees were gathered using an online survey. (5) The results illustrated that employees without leadership responsibilities used work gamification as a trigger for self-motivation, whereas employees with leadership responsibilities used it to improve their health. (6) Work gamification positively affected work enjoyment for both types of employees and positively affected productivity for employees with leadership responsibilities. (7) Our results underline the importance of taking work-related variables into account when researching work gamification.
In Sentence (1), the author makes a broad statement about their topic. Notice how the nouns used (“gamification,” “enjoyment,” “productivity”) are quite general while still indicating the focus of the paper. The author uses Sentence (2) to very briefly state the problem that the research will address.
In Sentence (3), the author explains what specific aspects of the problem mentioned in Sentence (2) will be explored in the present work. Notice that the mention of leadership responsibilities makes Sentence (3) more specific than Sentence (2). Sentence (4) gets even more specific, naming the specific tools used to gather data and the number of participants.
Sentences (5) and (6) are similar, with each sentence describing one of the study’s main findings. Then, suddenly, the scope of the abstract becomes quite broad again in Sentence (7), which mentions “work-related variables” instead of a specific variable and “researching” instead of a specific kind of research.
Abstract Templates
Copy and paste any of the paragraphs below into a word processor. Then insert the appropriate information to produce an abstract for your research paper.
Template #1
Researchers have established that [Make a broad statement about your area of research.] . However, [Describe the knowledge gap that your paper addresses.] . The goal of this paper is to [Describe the purpose of your paper.] . The achieve this goal, we [Briefly explain your methodology.] . We found that [Indicate the main finding(s) of your study; you may need two sentences to do this.] . [Provide a broad implication of your results.] .
Template #2
It is well-understood that [Make a broad statement about your area of research.] . Despite this, [Describe the knowledge gap that your paper addresses.] . The current research aims to [Describe the purpose of your paper.] . To accomplish this, we [Briefly explain your methodology.] . It was discovered that [Indicate the main finding(s) of your study; you may need two sentences to do this.] . [Provide a broad implication of your results.] .
Template #3
Extensive research indicates that [Make a broad statement about your area of research.] . Nevertheless, [Describe the knowledge gap that your paper addresses.] . The present work is intended to [Describe the purpose of your paper.] . To this end, we [Briefly explain your methodology.] . The results revealed that [Indicate the main finding(s) of your study; you may need two sentences to do this.] . [Provide a broad implication of your results.] .
- How to Write an Abstract
Related Posts
How to Write a Research Paper in English: A Guide for Non-native Speakers
How to Write an Abstract Quickly
Using the Present Tense and Past Tense When Writing an Abstract
1 comentário
Well explained! I have given you a credit
How to Write an Abstract APA Format
Saul McLeod, PhD
Editor-in-Chief for Simply Psychology
BSc (Hons) Psychology, MRes, PhD, University of Manchester
Saul McLeod, PhD., is a qualified psychology teacher with over 18 years of experience in further and higher education. He has been published in peer-reviewed journals, including the Journal of Clinical Psychology.
Learn about our Editorial Process
Olivia Guy-Evans, MSc
Associate Editor for Simply Psychology
BSc (Hons) Psychology, MSc Psychology of Education
Olivia Guy-Evans is a writer and associate editor for Simply Psychology. She has previously worked in healthcare and educational sectors.
An APA abstract is a brief, comprehensive summary of the contents of an article, research paper, dissertation, or report.
It is written in accordance with the guidelines of the American Psychological Association (APA), which is a widely used format in social and behavioral sciences.
An APA abstract summarizes, usually in one paragraph of between 150–250 words, the major aspects of a research paper or dissertation in a prescribed sequence that includes:
- The rationale: the overall purpose of the study, providing a clear context for the research undertaken.
- Information regarding the method and participants: including materials/instruments, design, procedure, and data analysis.
- Main findings or trends: effectively highlighting the key outcomes of the hypotheses.
- Interpretations and conclusion(s): solidify the implications of the research.
- Keywords related to the study: assist the paper’s discoverability in academic databases.
The abstract should stand alone, be “self-contained,” and make sense to the reader in isolation from the main article.
The purpose of the abstract is to give the reader a quick overview of the essential information before reading the entire article. The abstract is placed on its own page, directly after the title page and before the main body of the paper.
Although the abstract will appear as the very first part of your paper, it’s good practice to write your abstract after you’ve drafted your full paper, so that you know what you’re summarizing.
Note : This page reflects the latest version of the APA Publication Manual (i.e., APA 7), released in October 2019.
Structure of the Abstract
[NOTE: DO NOT separate the components of the abstract – it should be written as a single paragraph. This section is separated to illustrate the abstract’s structure.]
1) The Rationale
One or two sentences describing the overall purpose of the study and the research problem(s) you investigated. You are basically justifying why this study was conducted.
- What is the importance of the research?
- Why would a reader be interested in the larger work?
- For example, are you filling a gap in previous research or applying new methods to take a fresh look at existing ideas or data?
- Women who are diagnosed with breast cancer can experience an array of psychosocial difficulties; however, social support, particularly from a spouse, has been shown to have a protective function during this time. This study examined the ways in which a woman’s daily mood, pain, and fatigue, and her spouse’s marital satisfaction predict the woman’s report of partner support in the context of breast cancer.
- The current nursing shortage, high hospital nurse job dissatisfaction, and reports of uneven quality of hospital care are not uniquely American phenomena.
- Students with special educational needs and disabilities (SEND) are more likely to exhibit behavioral difficulties than their typically developing peers. The aim of this study was to identify specific risk factors that influence variability in behavior difficulties among individuals with SEND.
2) The Method
Information regarding the participants (number, and population). One or two sentences outlining the method, explaining what was done and how. The method is described in the present tense.
- Pretest data from a larger intervention study and multilevel modeling were used to examine the effects of women’s daily mood, pain, and fatigue and average levels of mood, pain, and fatigue on women’s report of social support received from her partner, as well as how the effects of mood interacted with partners’ marital satisfaction.
- This paper presents reports from 43,000 nurses from more than 700 hospitals in the United States, Canada, England, Scotland, and Germany in 1998–1999.
- The study sample comprised 4,228 students with SEND, aged 5–15, drawn from 305 primary and secondary schools across England. Explanatory variables were measured at the individual and school levels at baseline, along with a teacher-reported measure of behavior difficulties (assessed at baseline and the 18-month follow-up).
3) The Results
One or two sentences indicating the main findings or trends found as a result of your analysis. The results are described in the present or past tense.
- Results show that on days in which women reported higher levels of negative or positive mood, as well as on days they reported more pain and fatigue, they reported receiving more support. Women who, on average, reported higher levels of positive mood tended to report receiving more support than those who, on average, reported lower positive mood. However, average levels of negative mood were not associated with support. Higher average levels of fatigue but not pain were associated with higher support. Finally, women whose husbands reported higher levels of marital satisfaction reported receiving more partner support, but husbands’ marital satisfaction did not moderate the effect of women’s mood on support.
- Nurses in countries with distinctly different healthcare systems report similar shortcomings in their work environments and the quality of hospital care. While the competence of and relation between nurses and physicians appear satisfactory, core problems in work design and workforce management threaten the provision of care.
- Hierarchical linear modeling of data revealed that differences between schools accounted for between 13% (secondary) and 15.4% (primary) of the total variance in the development of students’ behavior difficulties, with the remainder attributable to individual differences. Statistically significant risk markers for these problems across both phases of education were being male, eligibility for free school meals, being identified as a bully, and lower academic achievement. Additional risk markers specific to each phase of education at the individual and school levels are also acknowledged.
4) The Conclusion / Implications
A brief summary of your conclusions and implications of the results, described in the present tense. Explain the results and why the study is important to the reader.
- For example, what changes should be implemented as a result of the findings of the work?
- How does this work add to the body of knowledge on the topic?
Implications of these findings are discussed relative to assisting couples during this difficult time in their lives.
- Resolving these issues, which are amenable to managerial intervention, is essential to preserving patient safety and care of consistently high quality.
- Behavior difficulties are affected by risks across multiple ecological levels. Addressing any one of these potential influences is therefore likely to contribute to the reduction in the problems displayed.
The above examples of abstracts are from the following papers:
Aiken, L. H., Clarke, S. P., Sloane, D. M., Sochalski, J. A., Busse, R., Clarke, H., … & Shamian, J. (2001). Nurses’ reports on hospital care in five countries . Health affairs, 20(3) , 43-53.
Boeding, S. E., Pukay-Martin, N. D., Baucom, D. H., Porter, L. S., Kirby, J. S., Gremore, T. M., & Keefe, F. J. (2014). Couples and breast cancer: Women’s mood and partners’ marital satisfaction predicting support perception . Journal of Family Psychology, 28(5) , 675.
Oldfield, J., Humphrey, N., & Hebron, J. (2017). Risk factors in the development of behavior difficulties among students with special educational needs and disabilities: A multilevel analysis . British journal of educational psychology, 87(2) , 146-169.
5) Keywords
APA style suggests including a list of keywords at the end of the abstract. This is particularly common in academic articles and helps other researchers find your work in databases.
Keywords in an abstract should be selected to help other researchers find your work when searching an online database. These keywords should effectively represent the main topics of your study. Here are some tips for choosing keywords:
Core Concepts: Identify the most important ideas or concepts in your paper. These often include your main research topic, the methods you’ve used, or the theories you’re discussing.
Specificity: Your keywords should be specific to your research. For example, suppose your paper is about the effects of climate change on bird migration patterns in a specific region. In that case, your keywords might include “climate change,” “bird migration,” and the region’s name.
Consistency with Paper: Make sure your keywords are consistent with the terms you’ve used in your paper. For example, if you use the term “adolescent” rather than “teen” in your paper, choose “adolescent” as your keyword, not “teen.”
Jargon and Acronyms: Avoid using too much-specialized jargon or acronyms in your keywords, as these might not be understood or used by all researchers in your field.
Synonyms: Consider including synonyms of your keywords to capture as many relevant searches as possible. For example, if your paper discusses “post-traumatic stress disorder,” you might include “PTSD” as a keyword.
Remember, keywords are a tool for others to find your work, so think about what terms other researchers might use when searching for papers on your topic.
The Abstract SHOULD NOT contain:
Lengthy background or contextual information: The abstract should focus on your research and findings, not general topic background.
Undefined jargon, abbreviations, or acronyms: The abstract should be accessible to a wide audience, so avoid highly specialized terms without defining them.
Citations: Abstracts typically do not include citations, as they summarize original research.
Incomplete sentences or bulleted lists: The abstract should be a single, coherent paragraph written in complete sentences.
New information not covered in the paper: The abstract should only summarize the paper’s content.
Subjective comments or value judgments: Stick to objective descriptions of your research.
Excessive details on methods or procedures: Keep descriptions of methods brief and focused on main steps.
Speculative or inconclusive statements: The abstract should state the research’s clear findings, not hypotheses or possible interpretations.
- Any illustration, figure, table, or references to them . All visual aids, data, or extensive details should be included in the main body of your paper, not in the abstract.
- Elliptical or incomplete sentences should be avoided in an abstract . The use of ellipses (…), which could indicate incomplete thoughts or omitted text, is not appropriate in an abstract.
APA Style for Abstracts
An APA abstract must be formatted as follows:
Include the running head aligned to the left at the top of the page (professional papers only) and page number. Note, student papers do not require a running head. On the first line, center the heading “Abstract” and bold (do not underlined or italicize). Do not indent the single abstract paragraph (which begins one line below the section title). Double-space the text. Use Times New Roman font in 12 pt. Set one-inch (or 2.54 cm) margins. If you include a “keywords” section at the end of the abstract, indent the first line and italicize the word “Keywords” while leaving the keywords themselves without any formatting.
Example APA Abstract Page
Download this example as a PDF
Further Information
- APA 7th Edition Abstract and Keywords Guide
- Example APA Abstract
- How to Write a Good Abstract for a Scientific Paper or Conference Presentation
- How to Write a Lab Report
- Writing an APA paper
How long should an APA abstract be?
An APA abstract should typically be between 150 to 250 words long. However, the exact length may vary depending on specific publication or assignment guidelines. It is crucial that it succinctly summarizes the essential elements of the work, including purpose, methods, findings, and conclusions.
Where does the abstract go in an APA paper?
In an APA formatted paper, the abstract is placed on its own page, directly after the title page and before the main body of the paper. It’s typically the second page of the document. It starts with the word “Abstract” (centered and not in bold) at the top of the page, followed by the text of the abstract itself.
What are the 4 C’s of abstract writing?
The 4 C’s of abstract writing are an approach to help you create a well-structured and informative abstract. They are:
Conciseness: An abstract should briefly summarize the key points of your study. Stick to the word limit (typically between 150-250 words for an APA abstract) and avoid unnecessary details.
Clarity: Your abstract should be easy to understand. Avoid jargon and complex sentences. Clearly explain the purpose, methods, results, and conclusions of your study.
Completeness: Even though it’s brief, the abstract should provide a complete overview of your study, including the purpose, methods, key findings, and your interpretation of the results.
Cohesion: The abstract should flow logically from one point to the next, maintaining a coherent narrative about your study. It’s not just a list of disjointed elements; it’s a brief story of your research from start to finish.
What is the abstract of a psychology paper?
An abstract in a psychology paper serves as a snapshot of the paper, allowing readers to quickly understand the purpose, methodology, results, and implications of the research without reading the entire paper. It is generally between 150-250 words long.
- Research Paper Guides
- Basics of Research Paper Writing
- How to Write an Abstract for a Research Paper: Writing Guide & Examples
- Speech Topics
- Basics of Essay Writing
- Essay Topics
- Other Essays
- Main Academic Essays
- Research Paper Topics
- Miscellaneous
- Chicago/ Turabian
- Data & Statistics
Methodology
- Admission Writing Tips
- Admission Advice
- Other Guides
- Student Life
- Studying Tips
- Understanding Plagiarism
- Academic Writing Tips
- Basics of Dissertation & Thesis Writing
- Essay Guides
- Formatting Guides
- Basics of Research Process
- Admission Guides
- Dissertation & Thesis Guides
How to Write an Abstract for a Research Paper: Writing Guide & Examples
Table of contents
Use our free Readability checker
An abstract is a brief summary of a research paper that is usually between 150 and 250 words in length. The purpose of the abstract is to provide a concise overview of the research paper's main questions, scope, methodology, findings, and conclusions. The abstract is usually located at the beginning of the paper, after the title page and before the main body of the text. It serves as a preview, and can be useful for readers who want to quickly determine whether the paper is relevant to their interests.
This guide describes all the key parts of this crucial segment and demonstrates how to write an abstract for a research paper . Research abstract examples and tips are also offered to help you create this section effectively.
What Is an Abstract in a Research Paper?
First, let’s cover what is an abstract in research. A research paper abstract is a synopsis of your full study. Specifically, writing an abstract involves extracting the main aspects of your work in a given order. These components include your study purpose and study questions, design, main findings, interpretation, and conclusion. Based on this summary, readers will decide whether to look at the rest of your project. Hence, you must include sufficient key information as this makes the abstract of a research paper useful to your audience or professor. To determine if you have included adequate data, imagine yourself as a researcher conducting an investigation. Consider an abstract as the only section, and think about how much information you provided. Are you satisfied with it? Does it describe your study adequately? Revise your writing accordingly. But don’t be confused. An abstract is a self-contained text, not a part of a research paper introduction . Remember that scientific paper abstracts must highlight your manuscript’s selling point and lure a reader to go through it. At first, it may sound difficult. But this guide will reveal every essential writing step. Alternatively, you can also contact StudyCrumb and pay to write research paper to avoid any further individual work.
What Is the Purpose of an Abstract?
The aforementioned definition demonstrates why abstract writing is important. Nevertheless, it is also necessary to understand the purpose of an abstract in a research paper. Well-written abstracts serve multiple objectives. For example, they communicate your key findings and allow readers to make an informed decision about how relevant your article is based on their interests and whether they should consider it. Reading an abstract of a scientific paper also prepares reviewers to grasp the key points and follow your detailed points and analyses. Another purpose of an abstract is for classification. Online libraries or journal databases, and search engines use abstracts for indexing published works. This allows users to retrieve what they are looking for quickly rather than reading full texts. Thus, a good abstract must include several key terms that potential readers would use for searching, as this makes discovering your work easy.
How Long Is an Abstract?
An abstract is perhaps the only section of your manuscript that is limited regarding how many words you can use. In general, it is usually limited to 150 and 300 words. However, for research paper abstract, most guidelines stick to the range of 200 and 250 words both for simple or small manuscripts and specific types of papers such as theses or dissertations. This restriction should not be exceeded no matter what. However, how long your abstract can be is influenced by the assignment instructions. Thus, it is essential to comply with any guidelines about the abstract length.
What Makes a Good Abstract for a Research Paper?
While the length aspect is vital, it is also essential to write a good abstract. This entails providing an honest and complete synopsis of your work through a coherent flow of ideas. An abstract in a paper should also be self-contained without the need for readers to peruse other parts for further information. Therefore, knowing how to write an effective abstract for a research paper can make a difference. Here are elements that make a good abstract for a research paper:
- Use one finely written, concise, and coherent paragraph that stands individually as an information unit.
- Add all the basic academic features of your manuscript, including background, objective, focus, method, findings/results, and conclusion.
- Do not write about information not covered in your document.
- Ensure the section is understandable to a wide audience and your subject-specific readers.
- Focus on issues instead of people.
- Develop it with the language of your main paper in a simple format for general readers.
- Put it just after your title page.
When to Write an Abstract?
Lengthy texts such as scholarly manuscripts usually require students to write an abstract section. You might also need to write an abstract for a scientific paper when:
- Submitting reports to journals for publication or peer review.
- Working on a book chapter proposal.
- Applying for research grants.
- Completing conference paper proposals.
- Composing book proposals.
- Writing theses or dissertations.
For undergraduates, you may be required to include an abstract in a research paper for others who have not read your main manuscript. Regardless of the type of work you are dealing with, it is necessary to draft your abstract after completing writing, as this enhances accuracy and conformity with other segments of a report.
What to Include in an Abstract of a Research Paper?
Another crucial aspect that you must consider is the structure of an abstract. Good abstracts are well-organized, which makes them more informative. Scientific guidelines emphasize the IMRad format as a standard way of unifying this section. The parts of an abstract in a research paper based on this system consist of:
Introduction
- Discussion.
Do not forget to balance all your sections properly regarding methods included under each heading. Using this setup allows you to write a helpful, concise, and easy-to-understand abstract of a paper. Nonetheless, some instructions may necessitate additional subheadings, particularly works such as clinical trials, observational studies, case studies, and meta-analyses. Hence, you should be attentive to your task requirements.
Sounds like you'll need lots of time to do it all properly? Use the best college paper writing service to avoid any trouble.
As the first section, an introduction reveals to readers what your work is about. Consequently, you should know how to start an abstract by writing a good beginning segment. Here, describe the scope, question/hypothesis, main objectives, and rationale for your study. In most cases, you can frame this part in 2-3 sentences. Each of them should describe a specific point to maximize word use. The introduction to an abstract part of a paper offers a background to your investigation, which should smoothly lead to an explanation of the methods that were used. Be careful here because writing an abstract for a research paper containing a lengthy introduction takes up space for other important sections. This affects the quality of an abstract in a scientific paper. Therefore, ensure that you provide brief, specific, and relevant information that keeps readers interested. Look at this example of an abstract introduction:
The present study explored the effect of technology in enhancing employment opportunities today. The benefits of technology have been examined in exploratory and descriptive studies. Nevertheless, no study has considered how technology increases employment opportunities.
Here are some more examples of how to begin your abstract.
Methodology in research is usually the second longest part of your abstract paragraph. The focus here is on providing adequate information about what you did and how. Specifically, give essential facts about your study design, setting, sample, data collection and analysis instruments, measures, and parameters. The methodology part is vital as you write the abstract section of a research paper because it helps in verifying your manuscript’s credibility. An editor will ignore an abstract missing a methods section or that does not have a clear explanation. Therefore, practice caution and professionalism when writing this unit by including enough details and conveying the maximum quantity of information with few words. If you are unsure of how to organize this segment, consider this example of a good abstract methodology:
This study used a qualitative exploratory design in which data was collected from existing studies and documents. A sample of 120 peer-reviewed works and documents were analyzed using an interpretive paradigm.
This section is about what you found after conducting your research. It is an indispensable and longest part of a research abstract because anyone reading intends to gain insights into your study findings or which data your investigation uncovered. Therefore, avoid compromising its quality by ensuring that you include as much factual information about your results as the word count allows. Drafting the results of an abstract for research papers is not easy. However, the details you should express here include the number of participants, outcomes of your analysis, and actual data such as numbers or mean, etc. Remember to be descriptive and prioritize fresh and substantiated findings contradicting previous studies. Also, indicate any limitations regarding your results’ reliability and accuracy. Look at this sample abstract results:
Nine studies did not meet the research criteria and were excluded. An analysis of the remaining 91 studies revealed five major themes, including ease of skills acquisition, work-at-home opportunities, globalization, digital marketing, and increased networking.
This is a part of the abstract structure where you divulge what readers can take home from your work or what your results mean based on how you interpreted the issue. Use a few but precise sentences to highlight the findings relating to what your study was about. You should also mention any unexpected or important outcomes. Additionally, you can offer a personal judgment regarding the practical or theoretical implications of your results or how significant they are for the study field as a whole. While conclusions are very short parts of an abstract, they are the most impactful on average audiences since readers usually believe authors and consider their views reliable. For this reason, ensure that you are honest when writing an abstract in research by limiting your claims to what your data exposes. Here is an example of a scientific abstract conclusion:
Technology has a positive effect on employment as it creates more job opportunities through remote work. It also enables people from any part of the world to learn essential skills, which enhances their job prospects.
Check our guide on creating a concluding section if you want to know more information on how to write a conclusion for a research paper .
An abstract for research paper must also contain a range of keywords. These are important words or phrases that act as search terms for finding your work quickly. Therefore, in addition to knowing how to write an abstract for a research paper and what to write in an abstract, you should understand how to include useful keywords that capture essential aspects of your manuscript. Think about how you can find your work online. Which words or a combination of them will be typed in a search box? You should use those terms. Acronyms such as OCD, meaning obsessive-compulsive disorder, may also be included. While you are not limited regarding the number of keywords to be used, it is recommended to include 3-5 keywords. Keep in mind that the research abstract format for keywords is a separate line beginning with an indention, like a paragraph below your abstract. Indicate it by italicizing the word Keywords followed by a colon and space look like this:
Keywords: international marketing, globalization, medium-size businesses, B2B, adaptation.
Do not italicize your terms.
How to Write a Research Paper Abstract Step-By-Step
Shrinking a manuscript that you have prepared for several days, weeks, or months into a 300-word paragraph can be challenging when preparing the abstract. However, you can follow specific tricks on how to write an abstract for a paper to address the difficulty. Before you begin, you must consider the instructions provided carefully concerning aspects such as spacing, fonts, word limit, and subheadings. In this section, you will learn how to write a good abstract for a research paper step by step.
1. Explain Your Research Purpose
Students usually start an abstract for a research paper by identifying the study's purpose. Here is where you consider the reasons for conducting your research. For example, if your study problem is about technology and employment, so what? Why should readers care about your topic? In this part of the abstract, you can describe what was solved or why you feel your topic is relevant. Use this section to inform readers about your key argument, as it helps in generating a good abstract for a research paper. Remember to be descriptive by explaining the difficulties of your topic or gaps in knowledge you will address and how your investigation will affect the issue. Consider triggers such as why you conducted your research, how you performed it, what you found, the significance of your study and its results, and why others should read your paper.
2. Define a Research Problem
The next step towards writing a good abstract involves explaining the central issue or problem statement behind your investigation or that your paper addresses. Remember, you first identified your purpose, so build on that by focusing on one key problem. Abstracts for scientific papers usually include this section to demonstrate the scope of a manuscript. Avoid using too much jargon here by making it easy for your readers to see your main message. If your abstract does not include the primary question, then you do not understand why you are conducting your study. Remember that when writing a research abstract, your purpose and problem form the backbone of the work. Thus, do not leave this step until you have one concise study problem.
3. Introduce Your Research Approach
After identifying your research problem, you now need to explain how you addressed it in this part of an academic abstract. In other words, how did you conduct your study following your key problem? When writing an abstract for a paper, let your audience know what you did exactly to get to the findings. Abstract in research paper may include approaches such as experimentation, case study, document analysis, or simulation. You must also highlight the extent of a manuscript, such as how many documents were analyzed and which variables were used. While this section of an abstract for a paper may require a long sentence, ensure that anyone can read it without needing to pause in the middle.
4. Discuss Results
After clarifying your approach, your study abstract must disclose what was found. What is the solution to your research problem? Did you confirm your hypothesis? Remember to be direct, detailed, and clear. Specifically, writing a scientific abstract requires that you describe your results in exact numbers or percentages. This allows you to create an abstract of research paper that cannot be misinterpreted easily. Also, avoid vague words such as “significant”, “large”, “very”, or “small.” In this section, an abstract in a research paper should not include exaggerations or create expectations that your manuscript cannot fulfill. Rather, the focus should be on your most important findings to engage readers. However, do not attempt to fit all your results in this part.
5. Wrap Up Your Scientific Paper Abstract
You should also conclude an abstract after completing the aforementioned steps. This enables you to finish up a research paper abstract and end it. Here, describe what your results mean and why your overall work is important. Mention what the answer to your research problem implies and identify if it is specific or general. For example, are your results generalizable to a wider population or selected groups? When creating an abstract, describe why your readers should care about your results rather than re-stating the findings. What can people do with your study? As stated previously, an abstract is a brief summary in the beginning of a research paper or any other scientific work. Read our guide on how to write an abstract for a research paper and how to structure it for more explanation.
Research Paper Abstract Examples
As you can see, constructing an abstract is not difficult if you follow the above-mentioned steps. You can now compose your own one easily. Nonetheless, if you are still confused or unsure whether you are on the right path, feel free to look at different examples of an abstract for a research paper. You can also consider these three examples of abstracts in research papers and use one of them as a draft for your work. Need a research proposal example ? You will find it in one more blog on our platform. Research paper abstract example 1
Abstract page example 2
Example of an abstract for a research paper 3
Research Paper Abstract Format
Another important consideration is complying with the specified abstract writing format to avoid any confusion on how this section should be completed. Your layout depends on the citation style being used. Specifically, the main styles, such as APA, MLA, and Chicago, have individual rules regarding how to format an abstract in a research paper. However, to make it simple, an abstract template is usually provided to help you with the organization. In general, observe and stick to your paper’s requirements.
Extra Tips for Writing an Abstract
Writing an abstract for a research paper should not be a complex process. You already have a good idea about how to make an abstract after reading the previous sections. Remember that writing this segment is an essential part of your work because it prefaces the entire manuscript. Still, it is usually the last segment of your project to be written, which means that you should summarize your research easily. However, this can be a daunting undertaking for some students. Below are additional abstract writing tips and guidelines to help you.
Draw Inspiration From Research Paper Abstracts Examples
Even if you follow this article’s guidelines, without writing practice, it can be difficult to create good abstracts. Therefore, if you are still struggling to write, you can draw inspiration from sample abstracts. These can be found in peer-reviewed articles or course books in your school library or from online databases. Focus on samples from your study field e.g., science abstracts examples if you are into the sciences or those for social sciences if it is your field. Seek assistance from your professor to ensure that you consider a good abstract paper example. Another option is reading how to write an abstract example segment, as this offers you a quick refresher on composing abstracts.
Prepare an Abstract Outline
It is also essential to write a research abstract outline if you have not done so already. Creating an outline will help you write your actual abstract paper efficiently. Make sure to place your key argument at the top before reading each subheading of your manuscript as a starting point. Write one-sentence summaries of your main sections as you read in the order that they appear in your work. Also, do not forget to summarize your conclusion. What goes in an abstract, however, is limited. For example, the literature review cannot be included. Rather, you can state in a sentence how your work fits into the wider academic discourse.
Write Abstract From the Ground Up
While your abstract is a synopsis, you should write it from scratch and as a completely different part of your manuscript. Copying and pasting quotes or paraphrasing sentences should be avoided. Use new phrases and vocabulary instead when writing this section to keep it engaging and free of redundant words or sentences. Read how to write abstract for research paper for more clarification about what you should include.
Make Your Research Abstract Concise
Ensure that your research paper abstract is clear, concise, and coherent. It should be no more than 200-250 words. If it is longer, cut it down where necessary. Since readers just want to get the overall view of your claim, you can exclude unimportant information and construct brief sentences. This is how to write a paper abstract:
- Include essential information found in the paper only
- No exaggerations or inclusion of new ideas
- No use of abbreviations that are found only in the body because the abstract should be self-contained
- No dwelling on previous studies since this is a synopsis of your report.
Mistakes to Avoid When You Write an Abstract for a Research Paper
Even if you know how to write research abstract, check it several times to ensure that what you included agrees with your manuscript content completely. Avoid these common mistakes:
- Research paper abstracts should not include catchy phrases or quotes focused on grabbing your readers’ attention.
- Do not use direct acronyms because they require further explanation to help readers understand.
- Citing other studies is not needed.
- Do not use confusing/unnecessary terms or obscure jargon, as the general audience may not understand them.
- A scientific paper abstract should not be too specific. Rather, consider a wider overview of your paper.
- Do not include long quotations, figures, or tables. They take up precious space, and your audience does not need them.
Bottom Line on How to Write a Research Abstract
This guide discussed extensively how to write the abstract of a research paper. Reaching this section means that you now understand what is an abstract in writing. The article also provided several abstract writing examples to help you grasp the described ideas. It is your turn now to develop a nice abstract by applying what you have learned. Do not fret if you are still confused or cannot recall some points. You can just re-read a section to fully understand all concepts.
Our professional writers can compose a top-notch abstract or any other section of a research paper. You can also easily ask for comprehensive assistance with any task and get excellent work strictly according to your deadlines.
FAQ About How to Write an Abstract
1. what is an abstract.
An abstract is a takeaway from your research. Specifically, abstracts are standalone sections that describe an issue, techniques utilized in exploring the issue, and the outcome of these procedures. While each study field specifies what to include in this section, it should be a concise synopsis of your work.
2. Where does an abstract go in a research paper?
Place your research paper abstract at the beginning of your work immediately after a title page and before your table of contents. However, some manuscripts have an acknowledgments section. Here, your abstract appears after that part. It should also be on its page and in a single paragraph.
3. Do you write an abstract first or last?
Even though it appears at the top of your work, ensure that you write an abstract last after completing your research paper since it involves abstracting contents from your manuscript. This allows you to align this section with other parts, such as the title, introduction, and background.
4. Do I need to cite references in a research paper abstract?
It is usually inappropriate to include any reference within abstracts because this section should demonstrate original research. The abstract of a research paper must include a description of what you did in your paper, what you argued, and what you found. You will cite specific sources in your manuscript’s body.
5. What should not be included in an abstract?
These are what you shouldn’t include in the abstract of a research paper:
- Long sentences
- Excessive details or lengthy contextual information
- Filler words, redundant phrases, and repetitive information
- Incomplete sentences
- New information not found within your main text.
6. What tense should I use when writing an abstract?
Write an abstract using active voice. However, a substantial part of this segment may need passive sentences. Nonetheless, use concise and complete sentences when writing your abstract. Specifically, get to your point quickly and focus mostly on the past tense since you are reporting completed research.
Joe Eckel is an expert on Dissertations writing. He makes sure that each student gets precious insights on composing A-grade academic writing.
IMAGES
VIDEO
COMMENTS
An abstract is a short summary of a longer work (such as a thesis, dissertation or research paper). The abstract concisely reports the aims and outcomes of your research, so that readers know exactly what your paper is about. ... If there are important limitations to your research (for example, related to your sample size or methods), ...
Definition and Purpose of Abstracts An abstract is a short summary of your (published or unpublished) research paper, usually about a paragraph (c. 6-7 sentences, 150-250 words) long. A well-written abstract serves multiple purposes: an abstract lets readers get the gist or essence of your paper or article quickly, in order to decide whether to….
An abstract may contain a succinct background statement highlighting the research's significance, a problem statement, the methodologies used, a synopsis of the results, and the conclusions drawn. When it comes to writing an abstract for a research paper, striking a balance between consciousness and informative detail is essential.
The typical length of an abstract is usually around 150-250 words, and it should be written in a concise and clear manner. Research Paper Abstract Structure. The structure of a research paper abstract usually includes the following elements: Background or Introduction: Briefly describe the problem or research question that the study addresses.
An abstract is a concise summary of the details within a report. Some abstracts give more details than others, but the main things you'll be talking about are why you conducted the research, what you did, and what the results show. When a reader is deciding whether to read your paper completely, they will first look at the abstract.
Follow these five steps to format your abstract in APA Style: Insert a running head (for a professional paper—not needed for a student paper) and page number. Set page margins to 1 inch (2.54 cm). Write "Abstract" (bold and centered) at the top of the page. Place the contents of your abstract on the next line.
The abstract of your paper provides a quick rundown of the aim, method, and results of your research. See how to write an effective research abstract by exploring several examples.
Methods - The methods section should contain enough information to enable the reader to understand what was done, and how. It should include brief details of the research design, sample size, duration of study, and so on. Results - The results section is the most important part of the abstract. This is because readers who skim an abstract do so ...
Write your paper first, then create the abstract as a summary. Check the journal requirements before you write your abstract, eg. required subheadings. Include keywords or phrases to help readers search for your work in indexing databases like PubMed or Google Scholar. Double and triple check your abstract for spelling and grammar errors.
For articles in biomedical journals, the abstract occupies a prominent position. After the title, the abstract is the section of the article most likely to be accessed and read and serves several important purposes. 1 The abstract of a research article represents an overview and provides a summary of the study design and main results, thereby making the key findings of the article readily ...
An informative abstract is a comprehensive outline of the research. There are times when people rely on the abstract as an information source. And the reason is why it is crucial to provide entire data of particular research. A well-written, informative abstract could be a good substitute for the remainder of the paper on its own.
The typical abstract includes these elements: A statement of the problem and objectives. A statement of the significance of the work. A summary of employed methods or your research approach. A summary of findings or conclusions of the study. A description of the implications of the findings. Regardless of field, abstract authors should explain ...
Abstracts also include the key terms found in the longer work and the purpose and methods of the research. Authors abstract various longer works, including book proposals, dissertations, and online journal articles. There are two main types of abstracts: descriptive and informative. A descriptive abstract briefly describes the longer work ...
An abstract is a 150- to 250-word paragraph that provides readers with a quick overview of your essay or report and its organization. It should express your thesis (or central idea) and your key points; it should also suggest any implications or applications of the research you discuss in the paper. According to Carole Slade, an abstract is ...
There are six steps to writing a standard abstract. (1) Begin with a broad statement about your topic. Then, (2) state the problem or knowledge gap related to this topic that your study explores. After that, (3) describe what specific aspect of this problem you investigated, and (4) briefly explain how you went about doing this.
Double-space the text. Use Times New Roman font in 12 pt. Set one-inch (or 2.54 cm) margins. If you include a "keywords" section at the end of the abstract, indent the first line and italicize the word "Keywords" while leaving the keywords themselves without any formatting.
Abstracts are usually a student's first point of contact with professional scientific research. Although reading a whole article can be daunting, reading an abstract is much simpler and the benefits to your learning are direct. Here are some ways reading abstracts helps you learn: Finding sources quickly. Gaining knowledge.
Authors abstract various longer works, including book proposals, dissertations, and online journal articles. There are two main types of abstracts: descriptive and informative. A descriptive abstract briefly describes the longer work, while an informative abstract presents all the main arguments and important results.
Here are elements that make a good abstract for a research paper: Use one finely written, concise, and coherent paragraph that stands individually as an information unit. Add all the basic academic features of your manuscript, including background, objective, focus, method, findings/results, and conclusion.
Abstracts. Abstracts provide a summary and preview of an academic work, such an article, research proposal, or conference presentation. Abstracts are the first part of an article that readers will see: They set expectations and help readers understand what will come next. All abstracts used in this handout are from published articles from ...
The abstract: "This quantitative research study was conducted to illustrate the relationship (s) between social media use and its effect on police brutality awareness. In 2015, social media was used to assist in revealing an act of impulsive police brutality on an adult black woman in Waller County, Texas.
Aiming at the issue of fatigue test data for large-scale mechanical components of building steel are very limited, a method for fitting P-S-N curves under small sample data of notched specimens is proposed to predict fatigue life. First, a fatigue life subsample augmented and its reliability assessment method are established, based on Bayesian hierarchical modeling and modified Monte Carlo method.