literature review example psychology paper

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Writing Research Papers

• Writing a Literature Review

When writing a research paper on a specific topic, you will often need to include an overview of any prior research that has been conducted on that topic.  For example, if your research paper is describing an experiment on fear conditioning, then you will probably need to provide an overview of prior research on fear conditioning.  That overview is typically known as a literature review.  

Please note that a full-length literature review article may be suitable for fulfilling the requirements for the Psychology B.S. Degree Research Paper .  For further details, please check with your faculty advisor.

Different Types of Literature Reviews

Literature reviews come in many forms.  They can be part of a research paper, for example as part of the Introduction section.  They can be one chapter of a doctoral dissertation.  Literature reviews can also “stand alone” as separate articles by themselves.  For instance, some journals such as Annual Review of Psychology , Psychological Bulletin , and others typically publish full-length review articles.  Similarly, in courses at UCSD, you may be asked to write a research paper that is itself a literature review (such as, with an instructor’s permission, in fulfillment of the B.S. Degree Research Paper requirement). Alternatively, you may be expected to include a literature review as part of a larger research paper (such as part of an Honors Thesis). 

Literature reviews can be written using a variety of different styles.  These may differ in the way prior research is reviewed as well as the way in which the literature review is organized.  Examples of stylistic variations in literature reviews include: 

• Summarization of prior work vs. critical evaluation. In some cases, prior research is simply described and summarized; in other cases, the writer compares, contrasts, and may even critique prior research (for example, discusses their strengths and weaknesses).
• Chronological vs. categorical and other types of organization. In some cases, the literature review begins with the oldest research and advances until it concludes with the latest research.  In other cases, research is discussed by category (such as in groupings of closely related studies) without regard for chronological order.  In yet other cases, research is discussed in terms of opposing views (such as when different research studies or researchers disagree with one another).

Overall, all literature reviews, whether they are written as a part of a larger work or as separate articles unto themselves, have a common feature: they do not present new research; rather, they provide an overview of prior research on a specific topic . 

How to Write a Literature Review

When writing a literature review, it can be helpful to rely on the following steps.  Please note that these procedures are not necessarily only for writing a literature review that becomes part of a larger article; they can also be used for writing a full-length article that is itself a literature review (although such reviews are typically more detailed and exhaustive; for more information please refer to the Further Resources section of this page).

Steps for Writing a Literature Review

1. Identify and define the topic that you will be reviewing.

The topic, which is commonly a research question (or problem) of some kind, needs to be identified and defined as clearly as possible.  You need to have an idea of what you will be reviewing in order to effectively search for references and to write a coherent summary of the research on it.  At this stage it can be helpful to write down a description of the research question, area, or topic that you will be reviewing, as well as to identify any keywords that you will be using to search for relevant research.

2. Conduct a literature search.

Use a range of keywords to search databases such as PsycINFO and any others that may contain relevant articles.  You should focus on peer-reviewed, scholarly articles.  Published books may also be helpful, but keep in mind that peer-reviewed articles are widely considered to be the “gold standard” of scientific research.  Read through titles and abstracts, select and obtain articles (that is, download, copy, or print them out), and save your searches as needed.  For more information about this step, please see the Using Databases and Finding Scholarly References section of this website.

3. Read through the research that you have found and take notes.

Absorb as much information as you can.  Read through the articles and books that you have found, and as you do, take notes.  The notes should include anything that will be helpful in advancing your own thinking about the topic and in helping you write the literature review (such as key points, ideas, or even page numbers that index key information).  Some references may turn out to be more helpful than others; you may notice patterns or striking contrasts between different sources ; and some sources may refer to yet other sources of potential interest.  This is often the most time-consuming part of the review process.  However, it is also where you get to learn about the topic in great detail.  For more details about taking notes, please see the “Reading Sources and Taking Notes” section of the Finding Scholarly References page of this website.

4. Organize your notes and thoughts; create an outline.

At this stage, you are close to writing the review itself.  However, it is often helpful to first reflect on all the reading that you have done.  What patterns stand out?  Do the different sources converge on a consensus?  Or not?  What unresolved questions still remain?  You should look over your notes (it may also be helpful to reorganize them), and as you do, to think about how you will present this research in your literature review.  Are you going to summarize or critically evaluate?  Are you going to use a chronological or other type of organizational structure?  It can also be helpful to create an outline of how your literature review will be structured.

5. Write the literature review itself and edit and revise as needed.

The final stage involves writing.  When writing, keep in mind that literature reviews are generally characterized by a summary style in which prior research is described sufficiently to explain critical findings but does not include a high level of detail (if readers want to learn about all the specific details of a study, then they can look up the references that you cite and read the original articles themselves).  However, the degree of emphasis that is given to individual studies may vary (more or less detail may be warranted depending on how critical or unique a given study was).   After you have written a first draft, you should read it carefully and then edit and revise as needed.  You may need to repeat this process more than once.  It may be helpful to have another person read through your draft(s) and provide feedback.

6. Incorporate the literature review into your research paper draft.

After the literature review is complete, you should incorporate it into your research paper (if you are writing the review as one component of a larger paper).  Depending on the stage at which your paper is at, this may involve merging your literature review into a partially complete Introduction section, writing the rest of the paper around the literature review, or other processes.

Further Tips for Writing a Literature Review

Full-length literature reviews

• Many full-length literature review articles use a three-part structure: Introduction (where the topic is identified and any trends or major problems in the literature are introduced), Body (where the studies that comprise the literature on that topic are discussed), and Discussion or Conclusion (where major patterns and points are discussed and the general state of what is known about the topic is summarized)

Literature reviews as part of a larger paper

• An “express method” of writing a literature review for a research paper is as follows: first, write a one paragraph description of each article that you read. Second, choose how you will order all the paragraphs and combine them in one document.  Third, add transitions between the paragraphs, as well as an introductory and concluding paragraph. 1
• A literature review that is part of a larger research paper typically does not have to be exhaustive. Rather, it should contain most or all of the significant studies about a research topic but not tangential or loosely related ones. 2   Generally, literature reviews should be sufficient for the reader to understand the major issues and key findings about a research topic.  You may however need to confer with your instructor or editor to determine how comprehensive you need to be.

Benefits of Literature Reviews

By summarizing prior research on a topic, literature reviews have multiple benefits.  These include:

• Literature reviews help readers understand what is known about a topic without having to find and read through multiple sources.
• Literature reviews help “set the stage” for later reading about new research on a given topic (such as if they are placed in the Introduction of a larger research paper). In other words, they provide helpful background and context.
• Literature reviews can also help the writer learn about a given topic while in the process of preparing the review itself. In the act of research and writing the literature review, the writer gains expertise on the topic .

Downloadable Resources

• How to Write APA Style Research Papers (a comprehensive guide) [ PDF ]
• Tips for Writing APA Style Research Papers (a brief summary) [ PDF ]
• Example APA Style Research Paper (for B.S. Degree – literature review) [ PDF ]

Further Resources

How-To Videos     

• Writing Research Paper Videos
• UCSD Library Psychology Research Guide: Literature Reviews

External Resources

• Developing and Writing a Literature Review from N Carolina A&T State University
• Example of a Short Literature Review from York College CUNY
• How to Write a Review of Literature from UW-Madison
• Writing a Literature Review from UC Santa Cruz  
• Pautasso, M. (2013). Ten Simple Rules for Writing a Literature Review. PLoS Computational Biology, 9 (7), e1003149. doi : 1371/journal.pcbi.1003149

1 Ashton, W. Writing a short literature review . [PDF]     

2 carver, l. (2014).  writing the research paper [workshop]. , prepared by s. c. pan for ucsd psychology.

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• Research Paper Structure
• Formatting Research Papers
• Using Databases and Finding References
• What Types of References Are Appropriate?
• Evaluating References and Taking Notes
• Citing References
• Writing Process and Revising
• Improving Scientific Writing
• Academic Integrity and Avoiding Plagiarism
• Writing Research Papers Videos

Literature Reviews

• General overview of Literature Reviews
• What should a Literature Review include?
• Examples of Literature Reviews
• Research - Getting Started

Online Resources

• CWU Learning Commons: Writing Resources
• Purdue OWL: Writing a Literature Review

Literature Reviews Examples

Social Sciences examples

• Psychology study In this example, the literature review can be found on pages 1086-1089, stopping at the section labeled "Aims and Hypotheses".
• Law and Justice study In this example, the literature review can be found on pages 431-449, stopping at the section labeled "Identifying and Evaluating the Impacts of the Prisoners' Rights Movement". This article uses a historical literature review approach.
• Anthropology study The literature review in this article runs from page 218 at the heading "Between Critique and Enchantment" and ends on page 221 before the heading "The Imagination as a Dimension of Reality".

Hard Science examples

• Physics article The literature review in this paper can be found in the Introduction section, ending at the section titled "Experimental procedure".
• Health Science article The literature review in this article is located at the beginning, before the Methods section.

Arts and Humanities examples

• Composition paper In this example, the literature review has its own dedicated section titled "Literature Review" on pages 2-3.
• Political geography paper The literature review in this paper is located in the introduction section.

Standalone Literature Review examples

• Project-based learning: A review of the literature
• Mental health and gender dysphoria: A review of the literature
• Academic engagement and commercialisation: A review of the literature on university–industry relations
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Literature Review: Conducting & Writing

• Sample Literature Reviews
• Steps for Conducting a Lit Review
• Finding "The Literature"
• Organizing/Writing
• APA Style This link opens in a new window
• Chicago: Notes Bibliography This link opens in a new window
• MLA Style This link opens in a new window

Sample Lit Reviews from Communication Arts

Have an exemplary literature review.

Note: These are sample literature reviews from a class that were given to us by an instructor when APA 6th edition was still in effect. These were excellent papers from her class, but it does not mean they are perfect or contain no errors. Thanks to the students who let us post!

• Literature Review Sample 1
• Literature Review Sample 2
• Literature Review Sample 3

Have you written a stellar literature review you care to share for teaching purposes?

Are you an instructor who has received an exemplary literature review and have permission from the student to post?

Please contact Britt McGowan at [email protected] for inclusion in this guide. All disciplines welcome and encouraged.

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• According to Science
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• Activity: Scholarly Party

What is a Literature Review?

The scholarly conversation.

A literature review provides an overview of previous research on a topic that critically evaluates, classifies, and compares what has already been published on a particular topic. It allows the author to synthesize and place into context the research and scholarly literature relevant to the topic. It helps map the different approaches to a given question and reveals patterns. It forms the foundation for the author’s subsequent research and justifies the significance of the new investigation.

A literature review can be a short introductory section of a research article or a report or policy paper that focuses on recent research. Or, in the case of dissertations, theses, and review articles, it can be an extensive review of all relevant research.

• The format is usually a bibliographic essay; sources are briefly cited within the body of the essay, with full bibliographic citations at the end.
• The introduction should define the topic and set the context for the literature review. It will include the author's perspective or point of view on the topic, how they have defined the scope of the topic (including what's not included), and how the review will be organized. It can point out overall trends, conflicts in methodology or conclusions, and gaps in the research.
• In the body of the review, the author should organize the research into major topics and subtopics. These groupings may be by subject, (e.g., globalization of clothing manufacturing), type of research (e.g., case studies), methodology (e.g., qualitative), genre, chronology, or other common characteristics. Within these groups, the author can then discuss the merits of each article and analyze and compare the importance of each article to similar ones.
• The conclusion will summarize the main findings, make clear how this review of the literature supports (or not) the research to follow, and may point the direction for further research.
• The list of references will include full citations for all of the items mentioned in the literature review.

Key Questions for a Literature Review

A literature review should try to answer questions such as

• Who are the key researchers on this topic?
• What has been the focus of the research efforts so far and what is the current status?
• How have certain studies built on prior studies? Where are the connections? Are there new interpretations of the research?
• Have there been any controversies or debate about the research? Is there consensus? Are there any contradictions?
• Which areas have been identified as needing further research? Have any pathways been suggested?
• How will your topic uniquely contribute to this body of knowledge?
• Which methodologies have researchers used and which appear to be the most productive?
• What sources of information or data were identified that might be useful to you?
• How does your particular topic fit into the larger context of what has already been done?
• How has the research that has already been done help frame your current investigation ?

Examples of Literature Reviews

Example of a literature review at the beginning of an article: Forbes, C. C., Blanchard, C. M., Mummery, W. K., & Courneya, K. S. (2015, March). Prevalence and correlates of strength exercise among breast, prostate, and colorectal cancer survivors . Oncology Nursing Forum, 42(2), 118+. Retrieved from http://go.galegroup.com.sonoma.idm.oclc.org/ps/i.do?p=HRCA&sw=w&u=sonomacsu&v=2.1&it=r&id=GALE%7CA422059606&asid=27e45873fddc413ac1bebbc129f7649c Example of a comprehensive review of the literature: Wilson, J. L. (2016). An exploration of bullying behaviours in nursing: a review of the literature.   British Journal Of Nursing ,  25 (6), 303-306. For additional examples, see:

Galvan, J., Galvan, M., & ProQuest. (2017). Writing literature reviews: A guide for students of the social and behavioral sciences (Seventh ed.). [Electronic book]

Pan, M., & Lopez, M. (2008). Preparing literature reviews: Qualitative and quantitative approaches (3rd ed.). Glendale, CA: Pyrczak Pub. [ Q180.55.E9 P36 2008]

Useful Links

• Write a Literature Review (UCSC)
• Literature Reviews (Purdue)
• Literature Reviews: overview (UNC)
• Review of Literature (UW-Madison)

Evidence Matrix for Literature Reviews

The  Evidence Matrix  can help you  organize your research  before writing your lit review.  Use it to  identify patterns  and commonalities in the articles you have found--similar methodologies ?  common  theoretical frameworks ? It helps you make sure that all your major concepts covered. It also helps you see how your research fits into the context  of the overall topic.

• Evidence Matrix Special thanks to Dr. Cindy Stearns, SSU Sociology Dept, for permission to use this Matrix as an example.
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Writing a Literature Review

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A literature review is a document or section of a document that collects key sources on a topic and discusses those sources in conversation with each other (also called synthesis ). The lit review is an important genre in many disciplines, not just literature (i.e., the study of works of literature such as novels and plays). When we say “literature review” or refer to “the literature,” we are talking about the research ( scholarship ) in a given field. You will often see the terms “the research,” “the scholarship,” and “the literature” used mostly interchangeably.

Where, when, and why would I write a lit review?

There are a number of different situations where you might write a literature review, each with slightly different expectations; different disciplines, too, have field-specific expectations for what a literature review is and does. For instance, in the humanities, authors might include more overt argumentation and interpretation of source material in their literature reviews, whereas in the sciences, authors are more likely to report study designs and results in their literature reviews; these differences reflect these disciplines’ purposes and conventions in scholarship. You should always look at examples from your own discipline and talk to professors or mentors in your field to be sure you understand your discipline’s conventions, for literature reviews as well as for any other genre.

A literature review can be a part of a research paper or scholarly article, usually falling after the introduction and before the research methods sections. In these cases, the lit review just needs to cover scholarship that is important to the issue you are writing about; sometimes it will also cover key sources that informed your research methodology.

Lit reviews can also be standalone pieces, either as assignments in a class or as publications. In a class, a lit review may be assigned to help students familiarize themselves with a topic and with scholarship in their field, get an idea of the other researchers working on the topic they’re interested in, find gaps in existing research in order to propose new projects, and/or develop a theoretical framework and methodology for later research. As a publication, a lit review usually is meant to help make other scholars’ lives easier by collecting and summarizing, synthesizing, and analyzing existing research on a topic. This can be especially helpful for students or scholars getting into a new research area, or for directing an entire community of scholars toward questions that have not yet been answered.

What are the parts of a lit review?

Most lit reviews use a basic introduction-body-conclusion structure; if your lit review is part of a larger paper, the introduction and conclusion pieces may be just a few sentences while you focus most of your attention on the body. If your lit review is a standalone piece, the introduction and conclusion take up more space and give you a place to discuss your goals, research methods, and conclusions separately from where you discuss the literature itself.

Introduction:

• An introductory paragraph that explains what your working topic and thesis is
• A forecast of key topics or texts that will appear in the review
• Potentially, a description of how you found sources and how you analyzed them for inclusion and discussion in the review (more often found in published, standalone literature reviews than in lit review sections in an article or research paper)
• Summarize and synthesize: Give an overview of the main points of each source and combine them into a coherent whole
• Analyze and interpret: Don’t just paraphrase other researchers – add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
• Critically Evaluate: Mention the strengths and weaknesses of your sources
• Write in well-structured paragraphs: Use transition words and topic sentence to draw connections, comparisons, and contrasts.

Conclusion:

• Summarize the key findings you have taken from the literature and emphasize their significance
• Connect it back to your primary research question

How should I organize my lit review?

Lit reviews can take many different organizational patterns depending on what you are trying to accomplish with the review. Here are some examples:

• Chronological : The simplest approach is to trace the development of the topic over time, which helps familiarize the audience with the topic (for instance if you are introducing something that is not commonly known in your field). If you choose this strategy, be careful to avoid simply listing and summarizing sources in order. Try to analyze the patterns, turning points, and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred (as mentioned previously, this may not be appropriate in your discipline — check with a teacher or mentor if you’re unsure).
• Thematic : If you have found some recurring central themes that you will continue working with throughout your piece, you can organize your literature review into subsections that address different aspects of the topic. For example, if you are reviewing literature about women and religion, key themes can include the role of women in churches and the religious attitude towards women.
• Qualitative versus quantitative research
• Empirical versus theoretical scholarship
• Divide the research by sociological, historical, or cultural sources
• Theoretical : In many humanities articles, the literature review is the foundation for the theoretical framework. You can use it to discuss various theories, models, and definitions of key concepts. You can argue for the relevance of a specific theoretical approach or combine various theorical concepts to create a framework for your research.

What are some strategies or tips I can use while writing my lit review?

Any lit review is only as good as the research it discusses; make sure your sources are well-chosen and your research is thorough. Don’t be afraid to do more research if you discover a new thread as you’re writing. More info on the research process is available in our "Conducting Research" resources .

As you’re doing your research, create an annotated bibliography ( see our page on the this type of document ). Much of the information used in an annotated bibliography can be used also in a literature review, so you’ll be not only partially drafting your lit review as you research, but also developing your sense of the larger conversation going on among scholars, professionals, and any other stakeholders in your topic.

Usually you will need to synthesize research rather than just summarizing it. This means drawing connections between sources to create a picture of the scholarly conversation on a topic over time. Many student writers struggle to synthesize because they feel they don’t have anything to add to the scholars they are citing; here are some strategies to help you:

• It often helps to remember that the point of these kinds of syntheses is to show your readers how you understand your research, to help them read the rest of your paper.
• Writing teachers often say synthesis is like hosting a dinner party: imagine all your sources are together in a room, discussing your topic. What are they saying to each other?
• Look at the in-text citations in each paragraph. Are you citing just one source for each paragraph? This usually indicates summary only. When you have multiple sources cited in a paragraph, you are more likely to be synthesizing them (not always, but often
• Read more about synthesis here.

The most interesting literature reviews are often written as arguments (again, as mentioned at the beginning of the page, this is discipline-specific and doesn’t work for all situations). Often, the literature review is where you can establish your research as filling a particular gap or as relevant in a particular way. You have some chance to do this in your introduction in an article, but the literature review section gives a more extended opportunity to establish the conversation in the way you would like your readers to see it. You can choose the intellectual lineage you would like to be part of and whose definitions matter most to your thinking (mostly humanities-specific, but this goes for sciences as well). In addressing these points, you argue for your place in the conversation, which tends to make the lit review more compelling than a simple reporting of other sources.

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• A literature review is a critical, analytical summary and synthesis of the current knowledge of a topic. As a researcher, you collect the available literature on a topic, and then select the literature that is most relevant for your purpose. Your written literature review summarizes and analyses the themes, topics, methods, and results of that literature in order to inform the reader about the history and current status of research on that topic.

What purpose does a literature review serve?

• The literature review informs the reader of the researcher's knowledge of the relevant research already conducted on the topic under discussion, and places the author's current study in context of previous studies.
• As part of a senior project, the literature review points out the current issues and questions concerning a topic. By relating the your research to a knowledge gap in the existing literature, you should demonstrate how his or her proposed research will contribute to expanding knowledge in that field.
• Short Literature Review Sample This literature review sample guides students from the thought process to a finished review.
• Literature Review Matrix (Excel Doc) Excel file that can be edited to suit your needs.
• Literature Review Matrix (PDF) Source: McLean, Lindsey. "Literature Review." CORA (Community of Online Research Assignments), 2015. https://www.projectcora.org/assignment/literature-review.
• Academic Writer (formerly APA Style Central) This link opens in a new window Academic Writer (formerly APA Style Central) features three independent but integrated centers that provide expert resources necessary for teaching, learning, and applying the rules of APA Style.
• Sample Literature Reviews: Univ. of West Florida Literature review guide from the University of West Florida library guides.
• Purdue University Online Writing Lab (OWL) Sample literature review in APA from Purdue University's Online Writing Lab (OWL)

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Writing a Literature Review

What is a literature review.

• Research Topic | Research Questions
• Outline (Example)
• What Types of Literature Should I Use in My Review?
• Project Planner: Literature Review
• Writing a Literature Review in Psychology
• Literature Review tips (video)

Table of Contents

• What is a literature review?
• How is a literature review different from a research article?
• The two purposes: describe/compare and evaluate
• Getting started Select a topic and gather articles
• Choose a current, well-studied, specific topic
• Search the research literature
• Read the articles
• Write the literature review
• Structure How to proceed: describe, compare, evaluate

Literature reviews survey research on a particular area or topic in psychology. Their main purpose is to knit together theories and results from multiple studies to give an overview of a field of research.

How is a Literature Review Different from a Research Article?

Research articles:

• are empirical articles that describe one or several related studies on a specific, quantitative, testable research question
• are typically organized into four text sections: Introduction, Methods, Results, Discussion

The Introduction of a research article includes a condensed literature review. Its purpose is to describe what is known about the area of study, with the goal of giving the context and rationale for the study itself. Published literature reviews are called review articles. Review articles emphasize interpretation. By surveying the key studies done in a certain research area, a review article interprets how each line of research supports or fails to support a theory. Unlike a research article, which is quite specific, a review article tells a more general story of an area of research by describing, comparing, and evaluating the key theories and main evidence in that area.

The Two Purposes of a Literature Review

Your review has two purposes:

(1) to describe and compare studies in a specific area of research and

(2) to evaluate those studies. Both purposes are vital: a thorough summary and comparison of the current research is necessary before you can build a strong evaluative argument about the theories tested.

Getting Started

(1) Select a research topic and identify relevant articles.

(2) Read the articles until you understand what about them is relevant to your review.

(3) Digest the articles: Understand the main points well enough to talk about them.

(4) Write the review, keeping in mind your two purposes: to describe and compare, and to evaluate.

SELECT A TOPIC AND COLLECT ARTICLES

Choose a current, well-studied, specific topic.

Pick a topic that interests you. If you're interested in a subject, you're likely to already know something about it. Your interest will help you to choose meaningful articles, making your paper more fun both to write and to read. The topic should be both current and well studied. Your goal is to describe and evaluate recent findings in a specific area of research, so pick a topic that you find in current research journals. Find an area that is well defined and well studied, meaning that several research groups are studying the topic and have approached it from different perspectives. If all the articles you find are from the same research group (i.e., the same authors), broaden your topic or use more general search terms.

You may need to narrow your topic. The subject of a short literature review must be specific enough, yet have sufficient literature on the subject, for you to cover it in depth. A broad topic will yield thousands of articles, which is impossible to survey meaningfully. If you are drowning in articles, or each article you find seems to be about a completely different aspect of the subject, narrow your topic. Choose one article that interests to you and focus on the specific question investigated. For example, a search for ‘teenage alcohol use’ will flood you with articles, but searching for ‘teenage alcohol use and criminal behavior’ will yield both fewer and more focused articles.

You may need to broaden your topic. You need enough articles on your topic for a thorough review of the research. If you’re unable to find much literature on your topic, or if you find articles you want that are not easy to find online, broaden your topic. What’s a more general way to ask your question of interest? For example, if you’re having a hard time finding articles on ‘discrimination against Asian-American women in STEM fields,’ broaden your topic (e.g., ‘academic discrimination against Asian-American women’ or ‘discrimination against women in STEM.’)

Consider several topics, and keep an open mind. Don't fall in love with a topic before you find how much research has been done in that area. By exploring different topics, you may discover something that is newly exciting to you!

Search the Research Literature

Do a preliminary search. Use online databases to search the research literature. If you don’t know how to search online databases, ask your instructor or reference librarian. Reference librarians are invaluable!

Search for helpful articles. Find one or more pivotal articles that can be a foundation for your paper. A pivotal article may be exceptionally well written, contain particularly valuable citations, or clarify relationships between different but related lines of research. Two sources of such articles in psychology are:

• Psychological Bulletin •
• Current Directions in Psychological Science (published by the American Psychological Society) has general, short articles written by scientists who have published a lot in their research area

How many articles? Although published review articles may cite more than 100 articles, literature reviews for courses are often shorter because they present only highlights of a research area and are not exhaustive. A short literature review may survey 7-12 research articles and be about 10-15 pages long. For course paper guidelines, ask your instructor.

Choose representative articles, not just the first ones you find. This consideration is more important than the length of your review.

Choose readable articles. Some research areas are harder to understand than others. Scan articles in the topic areas you are considering to decide on the readability of the research in those areas.

READ THE ARTICLES

To write an effective review, you’ll need a solid grasp of the relevant research. Begin by reading the article you find easiest. Read, re-read, and mentally digest it until you have a conversational understanding of the paper. You don’t know what you know until you can talk about it. And if you can’t talk about it, you won’t be able to write about it.

Read selectively. Don't start by reading the articles from beginning to end. First, read just the Abstract to get an overview of the study.

Scan the article to identify the answers to these “Why-What-What-What” questions:

• Why did they do the study? Why does it matter?
• What did they do?
• What did they find?
• What does it mean?

The previous four questions correspond to these parts of a research article:

• Introduction: the research question and hypotheses

Create a summary sheet of each article’s key points. This will help you to integrate each article into your paper.

TIP: Give Scholarcy a try.

Read for depth. After you understand an article’s main points, read each section in detail for to gain the necessary indepth understanding to compare the work of different researchers.

WRITE THE LITERATURE REVIEW

Your goal is to evaluate a body of literature; i.e., to “identify relations, contradictions, gaps, and inconsistencies” and “suggest next steps to solve the research problem” (APA Publication Manual 2010, p. 10). Begin writing when you have decided on your story and how to organize your research to support that story.

Organization

Organize the literature review to highlight the theme that you want to emphasize – the story that you want to tell. Literature reviews tend to be organized something like this:

Introduction:

• Introduce the research topic (what it is, why does it matter)
• Frame the story: narrow the research topic to the studies you will discuss
• Briefly outline how you have organized the review
• Headings. Use theme headings to organize your argument (see below)
• Describe the relevant parts of each study and explain why it is relevant to the subtopic at hand.
• Compare the studies if need be, to discuss their implications (i.e., your interpretation of what the studies show and whether there are important differences or similarities)
• Evaluate the importance of each study or group of studies, as well as the implications for the subtopic, and where research should go from here (on the level of the subtopic)

Conclusion: Final evaluation, summation and conclusion

Headings. Use headings to identify major sections that show the organization of the paper. (Headings also help you to identify organizational problems while you’re writing.) Avoid the standard headings of research articles (Introduction, Method, Results, Discussion). Use specific, conceptual headings. If you are reviewing whether facial expressions are universally understood, headings might include Studies in Western Cultures and Studies in Non-Western Cultures. Organize your argument into topics that fit under each heading (one or more per heading).

Describe. For each section or subtopic, briefly describe each article or line of research. Avoid sudden jumps betewen broader and narrower ideas. Keep your story in mind to help keep your thoughts connected.

Compare. For each section or topic, compare related studies, if this is relevant to your story. Comparisons may involve the research question, hypotheses, methods, data analysis, results, or conclusions. However, you don’t want to compare everything. That wouldn’t be a story! Which parts are relevant? What evidence supports your arguments? Identifying strengths and weaknesses of each study will help you make meaningful comparisons.

If you're having trouble synthesizing information, you probably don't understand the articles well. Reread sections you don’t understand. Discuss the studies with someone: you don’t know what you know until you can talk about it.

Evaluate. Descriptions/comparisons alone are not illuminating. For each section or topic, evaluate the studies you have reviewed based on your comparisons. Tell your reader what you conclude, and why. Evaluating research is the most subjective part of your paper. Even so, always support your claims with evidence. Evaluation requires much thought and takes on some risk, but without it, your paper is just a book report.

Final evaluation and summation. On a broader scale, relating to your main theme, tell your reader what you conclude and why. Reiterate your main claims and outline the evidence that supports them.

Conclusion. How does your evaluatio change or add to current knowledge in the field field? What future studies are implied by your analysis? How would such studies add to current knowledge of the topic?

The purpose of a literature review is to survey, describe, compare, and evaluate research articles on a particular topic. Choose a current topic that is neither too broad nor too narrow. Find the story that you want to tell. Spend a lot of time reading and thinking before you write. Think critically about the main hypotheses, findings, and arguments in a line of research. Identify areas of agreement among different articles as well as their differences and areas for future study. Expect to revise your review many times to refine your story. A well-written literature review gives the reader a comprehensive understanding of the main findings and remaining questions brought about by research on that topic.

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• Last Updated: Apr 4, 2024 1:35 PM
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