headings in apa literature review

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AP 7th Edition Headings

You'll want to use headings to structure your lit review. The APA 7th Additions specifies five levels of headings, in descending levels of emphasis (i. e. level 1 headings are the most important and level 5 headings the least).  The number of headings you use will depend on the length and complexity of your paper, but in any case, make sure to begin with a level 1 heading and proceed sequentially to level 2, then level 3, etc.

The introduction to your paper does not begin with a heading of any kind. Note that there cannot be single level 3, 4, or 5 headings. That is, you must have more than one heading at each of those levels.

Level 1 Headings Are Centered, Title Case and Bold With No Closing Period

Start a new, indented paragraph on the next line after Level 1 headings.

Level 2 Headings Are Flush Left (Not Centered and Not Indented) and Are Title Case and Bold With No Closing Period

Start a new, indented paragraph on the next line after Level 2 headings.

Level 3 Headings Are Flush Left (Not Centered and Not Indented) and Are Title Case, Bold, and Italicized, With No Closing Period

Start a new, indented paragraph on the next line after Level 3 headings.

               Level 4 Headings are Indented Left , Title Case and Bold With a Closing Period. Continue writing the paragraph on the same line after Level 4 headings.

          Level 5 Headings are Indented Left , Title Case , Bold, and Italicized With a Closing Period .  Continue writing the paragraph on the same line after Level 5 headings.

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What are headings?

Levels of headings.

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Headings are used to effectively organize ideas within a study or manuscript.  It can also highlight important items, themes or topics within sections.  By creating concise headings, the reader can anticipate key points and track the development of your argument.  The heading levels establish the hierarchy of each section and are designated by their formatting.

Adapted from American Psychological Association. (2009). Format for Five Levels of Heading in APA Journals. Publication manual of the American psychological association (6th ed., p. 62) Washington, D.C.: American Psychological Association.

• If you need to use subsections in any given section, use a least two, otherwise omit their use.
• Do not label headings with numbers or letters
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• Paragraph headings are immediately followed by text for that subsection, rather than starting on a new line.  The heading sits at the start of the first paragraph for that section.
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APA Headings and Subheadings

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There are five levels of headings available to use in an APA formatted paper. These headings indicate the hierchy of the information within the paper.

For example, if your paper contains the standard main sections Method , Results , and Discussion , these should all use the first-level heading.

• Method (level one)
• Results (level one)
• Discussion (level one)

If you want to include Participants and Instruments within the Method section, you would make these a level two heading.

• Participants (level two)
• Instruments (level two)

A subsection of Participants , like Age or Race , would be level three headings. This pattern continues down to level five headings.

• Age (level three)
• Race (level three)

Styling the Different Headings

Each level has specific formatting requirements to make it visibly obvious which level it is. As with all other text in an APA formatted paper, the font size should be 12pt. The differences between each level are as follows:

Level One Heading

Level one headings are centered and bolded, with all major words capitalized (articles and conjunctions are not captalized).

Level Two Heading

Level two headings are similar to level one headings, except are aligned on the left.

Level Three Heading. Level three headings are similar to levels one and two, except they're indented by 5 spaces, followed by a period, and the text following the heading does not start on a new line.

Level Four Heading. The level four heading is identical to level three, except it is also italicized.

Level Five Heading. Finally, the level five heading is identical to level four, except it is no longer bold.

Further Learning

The following video by the University of Maryland is excellent at visually explaining everything on this page.

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HEADINGS should not be confused with HEADERS. Headers include the page number and your abbreviated title that run along the top margin of each page of your paper (abbreviated title may or may not be used--check with your instructor).

Headings divide the body of your paper up into smaller, more manageable sections for your reader.  Headings are usually only necessary for longer papers--confirm with your instructor if they want you to use headings.  Although there are 5 levels of headings, you might only need to use 2 or 3 levels, depending on length and especially complexity of the paper.

Some instructors might provide specific headings for you to use--always follow your instructor's directions (even if it conflicts with what APA requires).

Visit the APA Style website for more detailed instructions on using headings, and/or the APA Style Manual, p. 47-49.

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• How to Write a Literature Review | Guide, Examples, & Templates

How to Write a Literature Review | Guide, Examples, & Templates

Published on January 2, 2023 by Shona McCombes . Revised on September 11, 2023.

What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research that you can later apply to your paper, thesis, or dissertation topic .

There are five key steps to writing a literature review:

• Search for relevant literature
• Evaluate sources
• Identify themes, debates, and gaps
• Outline the structure
• Write your literature review

A good literature review doesn’t just summarize sources—it analyzes, synthesizes , and critically evaluates to give a clear picture of the state of knowledge on the subject.

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Table of contents

What is the purpose of a literature review, examples of literature reviews, step 1 – search for relevant literature, step 2 – evaluate and select sources, step 3 – identify themes, debates, and gaps, step 4 – outline your literature review’s structure, step 5 – write your literature review, free lecture slides, other interesting articles, frequently asked questions, introduction.

• Quick Run-through
• Step 1 & 2

When you write a thesis , dissertation , or research paper , you will likely have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:

• Demonstrate your familiarity with the topic and its scholarly context
• Develop a theoretical framework and methodology for your research
• Position your work in relation to other researchers and theorists
• Show how your research addresses a gap or contributes to a debate
• Evaluate the current state of research and demonstrate your knowledge of the scholarly debates around your topic.

Writing literature reviews is a particularly important skill if you want to apply for graduate school or pursue a career in research. We’ve written a step-by-step guide that you can follow below.

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Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.

• Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
• Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
• Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
• Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)

You can also check out our templates with literature review examples and sample outlines at the links below.

Download Word doc Download Google doc

Before you begin searching for literature, you need a clearly defined topic .

If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research problem and questions .

Make a list of keywords

Start by creating a list of keywords related to your research question. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list as you discover new keywords in the process of your literature search.

• Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
• Body image, self-perception, self-esteem, mental health
• Generation Z, teenagers, adolescents, youth

Search for relevant sources

Use your keywords to begin searching for sources. Some useful databases to search for journals and articles include:

• Your university’s library catalogue
• Google Scholar
• Project Muse (humanities and social sciences)
• Medline (life sciences and biomedicine)
• EconLit (economics)
• Inspec (physics, engineering and computer science)

You can also use boolean operators to help narrow down your search.

Make sure to read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.

You likely won’t be able to read absolutely everything that has been written on your topic, so it will be necessary to evaluate which sources are most relevant to your research question.

For each publication, ask yourself:

• What question or problem is the author addressing?
• What are the key concepts and how are they defined?
• What are the key theories, models, and methods?
• Does the research use established frameworks or take an innovative approach?
• What are the results and conclusions of the study?
• How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
• What are the strengths and weaknesses of the research?

Make sure the sources you use are credible , and make sure you read any landmark studies and major theories in your field of research.

You can use our template to summarize and evaluate sources you’re thinking about using. Click on either button below to download.

Take notes and cite your sources

As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.

It is important to keep track of your sources with citations to avoid plagiarism . It can be helpful to make an annotated bibliography , where you compile full citation information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.

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To begin organizing your literature review’s argument and structure, be sure you understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:

• Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
• Themes: what questions or concepts recur across the literature?
• Debates, conflicts and contradictions: where do sources disagree?
• Pivotal publications: are there any influential theories or studies that changed the direction of the field?
• Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?

This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.

• Most research has focused on young women.
• There is an increasing interest in the visual aspects of social media.
• But there is still a lack of robust research on highly visual platforms like Instagram and Snapchat—this is a gap that you could address in your own research.

There are various approaches to organizing the body of a literature review. Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).

Chronological

The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarizing sources in order.

Try to analyze patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.

If you have found some recurring central themes, you can organize your literature review into subsections that address different aspects of the topic.

For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.

Methodological

If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:

• Look at what results have emerged in qualitative versus quantitative research
• Discuss how the topic has been approached by empirical versus theoretical scholarship
• Divide the literature into sociological, historical, and cultural sources

Theoretical

A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.

You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.

Like any other academic text , your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.

The introduction should clearly establish the focus and purpose of the literature review.

Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.

As you write, you can follow these tips:

• 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 sentences to draw connections, comparisons and contrasts

In the conclusion, you should summarize the key findings you have taken from the literature and emphasize their significance.

When you’ve finished writing and revising your literature review, don’t forget to proofread thoroughly before submitting. Not a language expert? Check out Scribbr’s professional proofreading services !

This article has been adapted into lecture slides that you can use to teach your students about writing a literature review.

Scribbr slides are free to use, customize, and distribute for educational purposes.

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If you want to know more about the research process , methodology , research bias , or statistics , make sure to check out some of our other articles with explanations and examples.

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A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .

It is often written as part of a thesis, dissertation , or research paper , in order to situate your work in relation to existing knowledge.

There are several reasons to conduct a literature review at the beginning of a research project:

• To familiarize yourself with the current state of knowledge on your topic
• To ensure that you’re not just repeating what others have already done
• To identify gaps in knowledge and unresolved problems that your research can address
• To develop your theoretical framework and methodology
• To provide an overview of the key findings and debates on the topic

Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.

The literature review usually comes near the beginning of your thesis or dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .

A literature review is a survey of credible sources on a topic, often used in dissertations , theses, and research papers . Literature reviews give an overview of knowledge on a subject, helping you identify relevant theories and methods, as well as gaps in existing research. Literature reviews are set up similarly to other  academic texts , with an introduction , a main body, and a conclusion .

An  annotated bibliography is a list of  source references that has a short description (called an annotation ) for each of the sources. It is often assigned as part of the research process for a  paper .  

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"a narrative summary and evaluation of the findings or theories within a literature base.  Also known as 'narrative literature review'. "

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Examples of Literature Reviews

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Literature Review: Conducting & Writing

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Sample Lit Reviews from Communication Arts

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Common Assignments: Literature Reviews

Basics of literature reviews.

A literature review is a written approach to examining published information on a particular topic or field. Authors use this review of literature to create a foundation and justification for their research or to demonstrate knowledge on the current state of a field. This review can take the form of a course assignment or a section of a longer capstone project. Read on for more information about writing a strong literature review!

Students often misinterpret the term "literature review" to mean merely a collection of source summaries, similar to annotations or article abstracts. Although summarizing is an element of a literature review, the purpose is to create a comprehensive representation of your understanding of a topic or area of research, such as what has already been done or what has been found. Then, also using these sources, you can demonstrate the need for future research, specifically, your future research.

There is usually no required format or template for a literature review. However, there are some actions to keep in mind when constructing a literature review:

• Include an introduction and conclusion . Even if the literature review will be part of a longer document, introductory and concluding paragraphs can act as bookends to your material. Provide background information for your reader, such as including references to the pioneers in the field in the beginning and offering closure in the end by discussing the implications of future research to the field.
• Avoid direct quotations . Just like in an annotated bibliography, you will want to paraphrase all of the material you present in a literature review. This assignment is a chance for you to demonstrate your knowledge on a topic, and putting ideas into your own words will ensure that you are interpreting the found material for your reader. Paraphrasing will also ensure your review of literature is in your authorial voice.
• Organize by topic or theme rather than by author. When compiling multiple sources, a tendency can be to summarize each source and then compare and contrast the sources at the end. Instead, organize your source information by your identified themes and patterns. This organization helps demonstrate your synthesis of the material and inhibits you from creating a series of book reports.
•  Use headings . APA encourages the use of headings within longer pieces of text to display a shift in topic and create a visual break for the reader. Headings in a literature review can also help you as the writer organize your material by theme and note any layers, or subtopics, within the field.
• Show relationships and consider the flow of ideas. A literature review can be lengthy and dense, so you will want to make your text appealing to your reader. Transitions and comparison terms will allow you to demonstrate where authors agree or disagree on a topic and highlight your interpretation of the literature.

Related Multimedia, Social Media, and Other Resources

Randolph, J. J. (2009). A guide to writing the dissertation literature review. Practical Assessment, Research and Evaluation , 14 (13), 1–13. https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1219&context=pare

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Commonly referred to as a “Lit Review”, a literature review is a critical, analytical summary and synthesis of the current knowledge of a topic.

• Have a particular focus or theme to organize the review.
• Discuss the significant academic literature important for that focus.
• Compare, relate, and contrast different theories and findings.
• Reflect trends over time.
• Be written in a legible academic style, leading logically from idea to idea.
• Remember to use parenthetical references in the text, for example: ...describe recent trends in supervision (Diaz, 2006; Stacey & Holmes, 2004).

Keep in mind that if your literature review stands alone—distinct from a thesis, study or dissertation—it should include a brief introduction and conclusion.

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Headings Levels

Level 1 Heading: Centered, Bolded, No Period

          Paragraph will begin on the next line, indented. 

Level 2 Heading: Left-flush, No Indent, Bolded, No Period

           Paragraph will begin on the next line, indented.

Level 3 Heading: Left-Flush, No Indent, Bolded, Italicized, No Period

           Level 4 Heading: Left-Flush, Indented, Bolded, With a Period at the End.  Paragraph will begin on the same line without indentation.

           Level 5 Heading: Left-Flush, Indented, Bolded, Italicized, With a Period at the End.  Paragraph will begin on the same line without indentation.

How to use headings and subheadings

Always begin with Level 1 Headings for a new section. This is the most important heading, and is used to introduce a new section of your paper, like the introduction, body, and conclusion. Levels 2-5 are considered to be subheadings. You must go in order of the Levels when using headings (start with Level 1 and work your way to Level 5).

Most assignments will only use Levels 1-3 for headings. Levels 4-5 are reserved for complex topics or upper-level research. 

There is no rigid formatting for a body paragraph that uses headings and subheadings. Depending on the complexity of your paper, you may use as many levels of headings as you feel is natural in your paper. As long as your headings are properly formatted in the way listed above, then your paper can be structured with as many/few headings as you like. 

To see an example where these headings are used in proper format, please look at this sample paper . 

Special Headings

Section labels are considered to be special headings. They will always begin on a new page of their own, be bolded, and centered. The following sections of a literature review are considered to be section labels:

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