subheadings for research paper

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APA Headings and Seriation

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Note:  This page reflects the latest version of the APA Publication Manual (i.e., APA 7), which released in October 2019. The equivalent resource for the older APA 6 style  can be found here .

APA Style uses a unique headings system to separate and classify paper sections. Headings are used to help guide the reader through a document. The levels are organized by levels of subordination, and each section of the paper should start with the highest level of heading. There are 5  heading levels  in APA. Regardless of the number of levels, always use the headings in order, beginning with level 1. The format of each level is illustrated below:

Thus, if the article has four sections, some of which have subsections and some of which don’t, use headings depending on the level of subordination. Section headings receive level one format. Subsections receive level two format. Subsections of subsections receive level three format. For example:

Method  (Level 1)

Site of Study  (Level 2)

Participant Population  (Level 2)

Teachers  (Level 3)

Students  (Level 3)

Results  (Level 1)

Spatial Ability  (Level 2)

Test One  (Level 3)

     Teachers With Experience.  (Level 4)

     Teachers in Training.  (Level 4)

     Teaching Assistants .  (Level 5)

Test Two  (Level 3)

Kinesthetic Ability  (Level 2)

In APA Style, the Introduction section never gets a heading and headings are not indicated by letters or numbers. For subsections in the beginning of a paper (introduction section), the first level of subsection will use Level 2 headings — the title of the paper counts as the Level 1 heading. Levels of headings will depend upon the length and organization of your paper. Regardless, always begin with level one headings and proceed to level two, etc.

Special headings called section labels are used for certain sections of a paper which always start on a new page.

• Paper title
• Appendix A (and so on for subsequent appendices)

These labels should be positioned on their own line at the top of the page where the section starts, in bold and centered. 

APA also allows for seriation in the body text to help authors organize and present key ideas. For lists where a specific order or numbered procedure is necessary, use an Arabic numeral directly followed by a period, such as:

On the basis of four generations of usability testing on the Purdue OWL, the Purdue OWL Usability Team recommended the following:

• Move the navigation bar from the right to the left side of the OWL pages.
• Integrate branded graphics (the Writing Lab and OWL logos) into the text on the OWL homepage.
• Add a search box to every page of the OWL.
• Develop an OWL site map.
• Develop a three-tiered navigation system.

Numbered lists should contain full sentences or paragraphs rather than phrases. The first word after each number should be capitalized, as well as the first word in any following sentence; each sentence should end with a period or other punctuation.

For lists that do not communicate hierarchical order or chronology, use bullets:

In general, participants found the user-centered OWL mock up to be easier to use. What follows are samples of participants' responses:

• "This version is easier to use."
• "Version two seems better organized."
• "It took me a few minutes to learn how to use this version, but after that, I felt more comfortable with it."

Authors may also use seriation for paragraph length text.

For seriation within sentences, authors may use letters:

On the basis of research conducted by the usability team, OWL staff have completed (a) the OWL site map; (b) integrating graphics with text on the OWL homepage; (c) search boxes on all OWL pages except the orange OWL resources (that is pending; we do have a search page); (d) moving the navigation bar to the left side of pages on all OWL resources except in the orange area (that is pending); (e) piloting the first phase of the three-tiered navigation system, as illustrated in the new Engagement section.

Authors may also separate points with bullet lists:

On the basis of the research conducted by the usability team, OWL staff have completed

• the OWL site map;
• integrating graphics with text on the OWL homepage;
• search boxes on all OWL pages except the orange OWL resources (that is pending; we do have a search page);
• moving the navigation bar to the left side of pages on all OWL resources except in the orange area (that is pending);
• piloting the first phase of the three-tiered navigation system, as illustrated in the new Engagement section.

If your bulleted list is part of the sentence and is not preceded by a colon, treat the bullets like a part of the sentence, adhering to standard capitalization and punctuation. This option is helpful for complex or longer bulleted sentences that may be more difficult to read without the aid of punctuation. For items in a bulleted list that are phrases rather than sentences, no punctuation is necessary.

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Formatting Research Paper Headings and Subheadings

Different style guides have different rules regarding the formatting of headings and subheadings in a paper, but what information you should actually put into your subheadings is a different question and often up to personal taste. Here we quickly summarize general guidelines, different approaches, and what not to do when choosing headings for a research paper.

Does it matter how I name my sections and subsections?

The main sections of a research paper have general headers and are often journal-specific, but some (e.g., the methods and discussion section) can really benefit from subsections with clear and informative headers. The things to keep in mind are thus the general style your paper is supposed to follow (e.g., APA, MLA), the specific guidelines the journal you want to submit to lists in their author instructions , and your personal style (e.g., how much information you want the reader to get from just reading your subsection headers). 

Table of Contents:

• Style Guides: Rules on Headings and Subheadings
• What Sections and Subsections Do You Need? 
• How Should You Name Your Sections and Subsections?
• Avoid These Common Mistakes

Style Guides: Research Paper Heading and Subheading Format

Headers identify the content within the different sections of your paper and should be as descriptive and concise as possible. That is why the main sections of research articles always have the same or very similar headers ( Introduction, Methods, Results, Discussion ), with no or only small differences between journals. However, you also need to divide the content of some of these sections (e.g., the method section) into smaller subsections (e.g., Participants, Experimental Design, and Statistical Analysis ), and make sure you follow specific journal formatting styles when doing so. 

If the journal you submit to follows APA style , for example, you are allowed to use up to five levels of headings, depending on the length of your paper, the complexity of your work, and your personal preference. To clearly indicate how each subsection fits into the rest of the text, every header level has a different format – but note that headers are usually not numbered because the different formatting already reflects the text hierarchy.

APA style headings example structure

Level 1 Centered, Bold, Title Case

Text begins as a new paragraph.

Level 2 Left-aligned, Bold, Title Case

Level 3 Left-aligned, Bold Italic, Title Case

Level 4     Indented, Bold, Title Case, Period . Text begins on the same                    

                                 line and continues as a regular paragraph.

Level 5     Indented, Bold Italic, Title Case, Period. Text begins on the                           

                                 same line and continues as a regular paragraph.

If you only need one section header (e.g. Methods ) and one level of subsection headers (e.g., Participants, Experimental Design, and Statistical Analysis ), use Level 1 and Level 2 headers. If you need three levels of headings, use Levels 1, 2, and 3 (and so on). Do not skip levels or combine them in a different way. 

If you write a paper in Chicago style or MLA style , then you don’t need to follow such exact rules for headings and subheadings. Your structure just has to be consistent with the general formatting guidelines of both styles (12-pts Times New Roman font, double-spaced text, 0.5-inch indentation for every new paragraph) and consistent throughout your paper. Make sure the different formatting levels indicate a hierarchy (e.g., boldface for level 1 and italics for level 2, or a larger font size for level 1 and smaller font size for level 2). The main specifics regarding Chicago and MLA headings and subheadings are that they should be written in title case (major words capitalized, most minor words lowercase) and not end in a period. Both styles allow you, however, to number your sections and subsections, for example with an Arabic number and a period, followed by a space and then the section name. 

MLA paper headings example structure

1. Introduction

2. Material and Methods

2.1 Subject Recruitment

2.2 Experimental Procedure

2.3 Statistical Analysis

3.1 Experiment 1

3.2 Experiment 2

4. Discussion

5. Conclusion

What research paper headings do you need?

Your paper obviously needs to contain the main sections ( Introduction, Methods, Results, Discussion, and maybe Conclusion ) and you need to make sure that you name them according to the target journal style (have a look at the author guidelines if you are unsure what the journal style is). The differences between journals are subtle, but some want you to combine the results and discussion sections, for example, while others don’t want you to have a separate conclusion section. You also need to check whether the target journal has specific rules on subsections (or no subsections) within these main sections. The introduction section should usually not be subdivided (but some journals do not mind), while the method section, for example, always needs to have clear subsections.

How to Name Your Sections and Subsections

The method section subheadings should be short and descriptive, but how you subdivide this section depends on the structure you choose to present your work – which can be chronological (e.g., Experiment 1, Experiment 2 ) or follow your main topics (e.g., Visual Experiment, Behavioral Experiment, Questionnaire ). Have a look at this article on how to write the methods for a research paper if you need input on what the best structure for your work is. The method subheadings should only be keywords that tell the reader what information is following, not summaries or conclusions. That means that “ Subject Recruitment ” is a good methods section subheading, but “ Subjects Were Screened Using Questionnaires ” is not.  

The subheadings for the result section should then follow the general structure of your method section, but here you can choose what information you want to put in every subheading. Some authors keep it simple and just subdivide their result section into experiments or measures like the method section, but others use the headings to summarize their findings so that the reader is prepared for the details that follow. You could, for example, simply name your subsections “ Anxiety Levels ” and “ Social Behavior ,” if those are the measures you studied and explained in the method section. 

Or, you could provide the reader with a glimpse into the results of the analyses you are going to describe, and instead name these subsections “ Anxiety-Like Behaviors in Mutant Mice ” and “ Normal Social Behaviors in Mutant Mice .” While keeping headings short and simple is always a good idea, such mini-summaries can make your result section much clearer and easier to follow. Just make sure that the target journal you want to submit to does not have a rule against that. 

Common Heading and Subheading Mistakes 

Subheadings are not sentences.

If your heading reads like a full sentence, then you can most probably omit the verb or generally rephrase to shorten it. That also means a heading should not contain punctuation except maybe colons or question marks – definitely don’t put a period at the end, except when you have reached heading level 4 in the APA formatting style (see above) and the rules say so.  

Be consistent

Always check your numbering, for example for spaces and periods before and after numbers (e.g., 3.2. vs 3.2 ), because readability depends on such features. But also make sure that your headings are consistent in structure and content: Switching between short keyword headings (e.g., “ Experiment 2 ”) and summary headings (e.g., “ Mice Do not Recognize People ”) is confusing and never a good idea. Ideally, subheadings within a section all have a similar structure. If your first subsection is called “ Mice Do not Recognize People ,” then “ People Do not Recognize Mice” is a better subheader for the next subsection than “Do People Recognize Mice? ”, because consistency is more important in a research paper than creativity. 

Don’t overdo it

Not every paragraph or every argument needs a subheading. Only use subheadings within a bigger section if you have more than one point to make per heading level, and if subdividing the section really makes the structure clearer overall.

Before submitting your journal manuscript to academic publishers, be sure to get English editing services , including manuscript editing or paper editing from a trusted source. And receive instant proofreading and paraphrasing with Wordvice AI, our AI online text editor , which provides unlimited editing while drafting your research work.

• Comprehensive Guide to Headings and Subheadings in APA 7.0

Section 1: Introduction to Headings and Subheadings in APA 7.0-

In academic writing, the use of headings and subheadings is crucial for organizing and structuring a paper. APA (American Psychological Association) style, specifically in its 7th edition, provides clear guidelines on how to effectively use headings and subheadings to enhance readability and comprehensibility of research papers, essays, and other scholarly works. This section will provide a comprehensive introduction to the importance, purpose, and benefits of using headings and subheadings in APA 7.0 format.

Purpose of Headings and Subheadings

Headings and subheadings serve as visual cues to help readers navigate through the content of a paper. They create a hierarchical structure, indicating the relationships between different sections and subsections, and aid in organizing ideas and presenting information in a logical manner. By using headings and subheadings, writers can effectively divide their work into manageable and coherent sections, making it easier for readers to comprehend and follow the main arguments and supporting details.

Importance of Headings and Subheadings

Clear and well-structured headings and subheadings are essential in academic writing for several reasons. First and foremost, they enhance the overall readability of the paper by breaking down the text into smaller, digestible chunks. This organization allows readers to quickly identify and locate specific information, especially when they are scanning or skimming through the document.

Secondly, headings and subheadings contribute to the coherence and flow of the paper. By providing a clear roadmap, they guide the reader through the main ideas, supporting evidence, and key points presented in each section. This not only improves the overall structure of the paper but also helps maintain the logical progression of thoughts and arguments.

Additionally, headings and subheadings assist both readers and writers in comprehending complex topics. They enable writers to organize their thoughts, ensuring that each section focuses on a specific aspect or theme. This organization facilitates a deeper understanding of the subject matter for both the writer during the drafting process and the reader during the consumption of the paper.

Formatting Guidelines for Headings and Subheadings

APA 7.0 provides specific rules and formatting guidelines for using headings and subheadings. These guidelines include the use of different levels of headings, capitalization rules, and placement within the paper. Understanding and adhering to these guidelines is crucial for maintaining consistency and conformity with APA style.

The APA 7.0 formatting guidelines for headings and subheadings are based on a five-level hierarchy, with each level indicating the level of importance and hierarchy of information. Level 1 headings are the highest level, followed by Level 2, Level 3, and so on. Each level has a specific formatting style, such as font size, boldness, and indentation, to differentiate it from the other levels. Furthermore, APA 7.0 also provides guidance on the appropriate use of sentence case, title case, and capitalization in headings and subheadings. For instance, Level 1 headings are typically written in sentence case and are centered and bolded. Level 2 headings are aligned to the left margin, bolded, and written in title case. To maintain clarity and consistency, APA 7.0 also provides recommendations on the number of headings to use within a paper. It suggests that at least two headings should be used in any given section, as a single heading alone may not adequately represent the content covered.

Section 2: The Purpose and Importance of Headings and Subheadings in APA 7.0

Facilitating information retrieval.

One of the primary purposes of headings and subheadings in APA 7.0 is to facilitate information retrieval for readers. When faced with a lengthy document, readers often engage in scanning or skimming techniques to locate specific information or sections of interest. Well-structured headings and subheadings act as signposts, allowing readers to quickly identify the content they are seeking without having to read the entire text. By providing a clear and organized hierarchy, headings guide readers to the main sections of a paper, while subheadings further break down the content into more specific subsections. This hierarchical structure enables readers to navigate the document with ease, locating relevant information efficiently. Thus, headings and subheadings in APA 7.0 contribute significantly to the overall accessibility and user-friendliness of academic papers.

Enhancing Readability and Comprehensibility

Headings and subheadings play a vital role in enhancing the readability and comprehensibility of academic writing. They help break up large blocks of text into smaller, digestible sections, preventing the overwhelming feeling that dense paragraphs can create. By visually separating different sections and subsections, headings and subheadings allow readers to mentally prepare for the content they are about to encounter. Additionally, headings and subheadings improve the flow and coherence of a paper. They provide a roadmap for readers, helping them understand the organization and structure of the author's arguments and supporting evidence. Well-crafted headings and subheadings enable readers to follow the logical progression of ideas and maintain a clear understanding of the paper's main points. Finally, headings and subheadings aid in the comprehension of complex topics. By breaking down the content into smaller, focused sections, readers can grasp the material more easily. Headings act as cognitive cues, preparing readers for the information presented in each section. This approach not only facilitates understanding but also allows readers to engage with the content at a deeper level, promoting knowledge retention.

Organizing and Structuring Ideas

Headings and subheadings in APA 7.0 serve as valuable tools for organizing and structuring ideas within a paper. They help writers divide their work into meaningful sections, each addressing a specific aspect or theme related to the overall topic. This organization ensures that information is presented in a coherent and logical manner, making it easier for both the writer and the reader to navigate the paper.

By using headings and subheadings, writers can create a clear outline for their work, ensuring that each section has a distinct focus. This outline acts as a framework, guiding the writer in presenting their arguments and supporting evidence in a systematic and organized way. Writers can use headings to delineate major sections or main ideas, while subheadings allow for further subcategorization and exploration of subtopics.

Furthermore, headings and subheadings assist writers in structuring their thoughts during the writing process. By providing a visual representation of the paper's organization, headings help writers maintain a coherent flow of ideas and prevent the inclusion of irrelevant or tangential information. This structured approach not only improves the overall quality of the paper but also enhances the writer's ability to communicate their ideas effectively.

Conveying the Hierarchical Relationship of Information

Another important purpose of headings and subheadings in APA 7.0 is to convey the hierarchical relationship of information. By assigning different levels to headings, the writer can indicate the relative importance and order of ideas within the paper. Higher-level headings represent broader themes or major sections, while lower-level headings address more specific subtopics or subsections. This hierarchical structure helps readers understand the organization and logical flow of the paper at a glance. It allows them to grasp the overall structure and the relationships between different sections without having to read the entire document. Additionally, the use of indentation and formatting styles for each level of heading further reinforces the hierarchical relationship and aids in visual differentiation.

Section 3: Formatting Guidelines for Headings and Subheadings in APA 7.0

Proper formatting of headings and subheadings is crucial in APA 7.0 style to ensure consistency, clarity, and readability in academic writing. This section will delve into the specific formatting guidelines provided by APA 7.0 for headings and subheadings, including the use of different levels, capitalization rules, and placement within the paper.

Levels of Headings

APA 7.0 introduces a five-level hierarchy for headings, each denoting a different level of importance and significance within the paper. These levels provide a structured framework for organizing the content and help readers understand the organization and flow of ideas. Here are the five headings in APA 7.0:

Level 1: Centered, Bold and Title Case

            Text begins here.

Level 2: Left-Aligned, Bold and Title Case

Level 3: Left-Aligned, Bold, Italics, and Title Case

Level 4: Left-Aligned, Bold, Title Case, and Period. Text begins here.

Level 5: Left-Aligned, Bold, Title Case, Italics, and Period . Text begins here.

Section 4: Organizing and Structuring Your Paper

Using headings and subheadings in apa 7.0.

Organizing and structuring your paper effectively is crucial for presenting your ideas in a logical and coherent manner. Headings and subheadings in APA 7.0 play a vital role in achieving this goal by providing a clear framework for organizing your content. This section will delve into strategies and best practices for utilizing headings and subheadings to organize and structure your paper in accordance with APA 7.0 guidelines.

Preparing an Outline

Before you begin writing your paper, it is helpful to create an outline that outlines the main sections and subsections you intend to cover. An outline acts as a roadmap, allowing you to visualize the overall structure and flow of your paper. It serves as a foundation for developing meaningful headings and subheadings that accurately represent the content and facilitate logical organization. Start by identifying the major sections that your paper will include, such as introduction, literature review, methods, results, discussion, and conclusion. These major sections will serve as Level 1 headings in APA 7.0. Next, break down each major section into subsections that address specific subtopics or aspects related to the main theme. These subsections will be represented by Level 2 headings. Depending on the complexity and depth of your paper, you may further divide the subsections into sub-subsections using Level 3, Level 4, and Level 5 headings. Creating a comprehensive outline not only helps you organize your thoughts but also ensures that you cover all the necessary components of your paper. It allows you to see the relationships between different sections and subsections, enabling you to present your arguments and evidence in a logical and coherent sequence.

Maintaining Consistency and Parallelism

Consistency is key when it comes to organizing and structuring your paper using headings and subheadings. It is important to establish a consistent framework that is followed throughout the entire document. Consistency ensures that readers can easily understand the hierarchy and relationships between different sections and subsections. When creating headings and subheadings, aim for parallelism in terms of grammatical structure and formatting. Parallelism means that headings at the same level should have a similar grammatical structure and formatting style. For instance, if you choose to use noun phrases for Level 2 headings, maintain this pattern consistently across all Level 2 headings in your paper. This helps readers navigate through the content smoothly and maintain a sense of coherence. Furthermore, parallelism extends to the use of punctuation and capitalization within headings and subheadings. Maintain consistent capitalization rules, such as sentence case for Level 1 headings and title case for Level 2 headings. This uniformity enhances the visual hierarchy and clarity of your paper.

Balancing Depth and Granularity

Effective organization and structuring involve finding the right balance between depth and granularity in your headings and subheadings. Level 1 headings represent major sections and should encapsulate broad themes or concepts, providing an overview of what will be discussed within each section. Level 2 headings, as subsections, delve into more specific topics or aspects related to the main theme of the major section.

Reviewing and Revising the Organization

Organizing and structuring your paper using headings and subheadings is not a one-time task. It is an iterative process that requires regular review and revision to ensure optimal clarity and coherence. Once you have completed the initial draft of your paper, review the organization of your headings and subheadings. Ask yourself if the structure effectively reflects the flow of your ideas and supports your main argument. Consider whether the headings accurately represent the content of each section and subsection. During the review process, pay attention to transitions between sections and subsections. Ensure that the headings and subheadings create a smooth transition from one topic to another, guiding readers through the logical progression of your paper. If you notice any gaps or inconsistencies, revise and refine the organization accordingly. Additionally, seek feedback from peers, mentors, or instructors. Their fresh perspective can provide valuable insights into the clarity and effectiveness of your headings and subheadings. Incorporate their feedback and make necessary adjustments to improve the overall organization and structure of your paper.

Section 5: Common Mistakes to Avoid in Using Headings and Subheadings in APA 7.0

While using headings and subheadings in APA 7.0 can greatly improve the organization and readability of your paper, it's important to be aware of common mistakes that can compromise the effectiveness of your headings. By understanding and avoiding these mistakes, you can ensure that your headings enhance the clarity and coherence of your academic writing. This section will explore some common mistakes to avoid when using headings and subheadings in APA 7.0.

Inconsistent Formatting

One of the most common mistakes is inconsistent formatting of headings and subheadings. In APA 7.0, it is crucial to maintain consistency in capitalization, alignment, and formatting styles across headings at the same level. Inconsistencies can confuse readers and disrupt the visual hierarchy of your paper. Ensure that all Level 1 headings have the same formatting, all Level 2 headings have the same formatting, and so on. Consistency in formatting contributes to the overall professionalism and readability of your work.

Poor Alignment and Spacing

Another mistake to avoid is incorrect alignment and spacing of headings and subheadings. In APA 7.0, Level 1 headings are centered and typically start on a new page or a new line with an extra line space before and after the heading. Level 2 headings and lower-level headings, however, are left-aligned and generally require an extra line space before the heading but not after. Failure to align and space headings correctly can create confusion and disrupt the logical flow of your paper. Review APA 7.0 guidelines carefully to ensure proper alignment and spacing of your headings.

Lack of Parallelism

Parallelism, or consistent grammatical structure, is crucial when using headings and subheadings. Headings at the same level should follow a similar structure to maintain coherence and readability. For example, if you use noun phrases for Level 2 headings, ensure that all Level 2 headings follow this pattern. Lack of parallelism can make your headings appear disjointed and may confuse readers. Consistently apply parallel structure within each level of headings to create a smooth and organized flow of information.

Overcomplicating the Heading Structure

While it is important to provide a clear and hierarchical structure to your paper, overcomplicating the heading structure can lead to confusion and excessive fragmentation. Strive to find a balance between providing enough detail to cover your content effectively and avoiding an excessive number of headings and subheadings. Each heading should represent a meaningful subdivision and contribute to the overall organization and coherence of your paper. Aim for a clear and concise heading structure that guides readers without overwhelming them with excessive levels or overly specific subdivisions.

Lack of Descriptiveness

Headings and subheadings should be descriptive and informative to accurately represent the content covered within each section. Avoid using generic or ambiguous headings that do not provide a clear indication of what readers can expect to find. Vague headings can leave readers uncertain about the content or make it challenging to locate specific information within your paper. Ensure that your headings succinctly capture the main ideas or themes of each section, guiding readers through your content effectively.

Ignoring the Reader's Perspective

When creating headings and subheadings, it's important to consider the perspective of your readers. Put yourself in their shoes and think about how your headings will facilitate their understanding and navigation through your paper. Consider whether your headings effectively communicate the main points, guide readers through the logical flow of your arguments, and enable them to locate specific information easily. Ignoring the reader's perspective can result in headings that are unclear, unhelpful, or inconsistent, hindering the overall readability and comprehension of your work.

Neglecting to Revise and Edit Headings

Headings should not be an afterthought or treated as static elements in your paper. Neglecting to revise and edit your headings can lead to inaccuracies, lack of clarity, or poor alignment with the final content of your paper. As you progress through the writing process, continuously review and refine your headings to ensure they accurately represent the content and flow of your arguments. Make necessary adjustments, reword headings for better clarity, and ensure that they align with the finalized structure and organization of your paper.

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Easy Style Guide for Research Paper Subheadings

Table of Contents

Whether you’re writing in the APA or MLA format, there are rules that you need to follow. These rules help standardize research papers’ structure, making them easy to read and evaluate. This article explains the rules for completing  research paper subheadings .

If you want to learn to write proper academic paper subheadings, read on. 

What are Research Paper Subheadings?

Research paper subheadings are the most essential part of your paper. Your subheadings are the headings that appear in italics at the top of each page. They give the reader an idea of what to expect throughout the text and serve as tags in a research paper. They may also make it easier to refer to specific ideas or arguments in the article.

Research paper subheadings also improve the readability and flow of a paper, and it helps separate ideas. This helps readers fully grasp your meaning and follow your arguments.

Naming Sections and Subsections

Naming sections and subsections are essential because they will be referred to in the text. Subsections can be named in various ways, including by title or phrase representative of their content. 

A research paper’s main sections are often specific to the journal, but some sections are standard in all papers. As a general rule, it’s essential to pay attention to the prescribed style for your paper  (e.g., APA, MLA) .

Author instructions will also provide guidelines for writing your sections.

Rules for Research Paper Subheadings

Headers represent the content found in the different sections of your paper. They need to be descriptive and concise. This explains why the main sections of many articles have similar or exact headers such as:

• Introduction

These main sections are divided into subsections representing a facet of the main section. Think of it this way: Your research article is a tree made up of branches (Headings) that further separate into smaller branches ( Subheadings ). To fully grasp the concept of a tree, one needs to appreciate all its parts.

APA style headings structure:

If you’re writing a journal in the APA style, you’re allowed to use a maximum of five levels of headings. This depends greatly on your journal’s length, the complexity of topics, and personal preference.

Every header has a different format to indicate a shift to a new section. These headers usually don’t have numbering because the difference in the design already indicates a change of section. The different heading levels and their formats are illustrated below:

Level 1  Centered, Bold, Title Case

The text begins as a new paragraph.

Level 2  Left-aligned, Bold, Title Case

Level 3  left-aligned, bold italic, title case, level 4  indented, bold, title case, period . the text starts on the same line and continues as a regular paragraph., level 5  indented, bold italic, title case, period.  the text starts on the same line and continues as a regular paragraph..

Again, these are the standard header formatting rules for APA. It’s important to take note of particular formatting rules included in the author instructions for your journal.

MLA paper headings example structure:

The MLA structure doesn’t require authors to follow exact rules for sectioning their articles. The structure needs to be consistent with general formatting guidelines such as:

• 12-pts Times New Roman font
• Double-spaced text
• 0.5-inch indentation for each new paragraph

Sections must also be written in title case (Capitalize major words and use lowercase for minor words). Below is an example of MLA section levels:

1. Introduction

2. Material and Methods

2.1 Subject Recruitment

2.2 Experimental Procedure

2.3 Statistical Analysis

3.1 Experiment 1

3.2 Experiment 2

4. Discussion

5. Conclusion

The MLA research style isn’t as strict as APA. It only requires authors to observe formatting standards for both types. 

Subsection formats are essential in academic writing because they signify a shift in the subject matter . APA and MLA styles have different rules for sectioning. If you need help understanding these rules, feel free to revisit our style guide any time. Good luck with your research paper!

Abir Ghenaiet

Abir is a data analyst and researcher. Among her interests are artificial intelligence, machine learning, and natural language processing. As a humanitarian and educator, she actively supports women in tech and promotes diversity.

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How do I style headings and subheadings in a research paper?

Headings and subheadings can help organize and structure your writing. In general, longer and more complex works warrant more of them than shorter ones. Avoid overusing headings in short projects; they should never be used to compensate for poor structure or to explain an underdeveloped idea.

When headings are called for in your writing project, observe the basic guidelines below.

The paper or chapter title is the first level of heading, and it must be the most prominent.

Headings should be styled in descending order of prominence. After the first level, the other headings are subheadings—that is, they are subordinate. Font styling and size are used to signal prominence. In general, a boldface, larger font indicates prominence; a smaller font, italics, and lack of bold can be used to signal subordination. For readability, don’t go overboard: avoid using all capital letters for headings (in some cases, small capitals may be acceptable):

Heading Level 1

Heading Level 2

Heading Level 3

Note that word-processing software often has built-in heading styles.

Consistency

Consistency in the styling of headings and subheadings is key to signaling to readers the structure of a research project. That is, each level 1 heading should appear in the same style and size, as should each level 2 heading, and so on. Generally avoid numbers and letters to designate heads unless you are working in a discipline where doing so is conventional. Note that a heading labeled “1” requires a subsequent heading labeled “2,” and a heading labeled “a” requires a subsequent heading labeled “b.” 

In a project that is not professionally designed and published, headings should be flush with the left margin, to avoid confusion with block quotations. (The exception is the paper or chapter title, which is centered in MLA style.)

For readability, it is helpful to include a line space above and below a heading, as shown in this post.

No internal heading level should have only one instance. For example, if you have one level 1 heading, you need to have a second level 1 heading. (The exceptions are the paper or chapter title and the headings for notes and the list of works cited.) You should also generally have text under each heading.

Capitalization

Capitalize headings like the titles of works, as explained in section 1.5 of the MLA Handbook .

The shorter, the better.

APA Headings and Subheadings

The use of headings and subheadings give the readers a general idea of what to expect from the paper and leads the flow of discussion. These elements divide and define each section of the paper. APA recommends five-level heading structure based on the level of subordination.

Table of Content

• 2 Guideline
• 4  A Couple of Writing Tips

Levels indicate the hierarchy of importance and scope of each heading and subheading. The extent of using the different levels depends on the length and complexity of the paper. Usually, short papers or articles use two to three levels, but longer papers necessitate up to five levels. Level 1 encompasses a broader topic and levels 2 to 5 covers narrow to more detailed topics.

Level 1 Section heading

Level 2 Subsection heading

Level 3 Subsection of a subsection heading

Level 4 Subsection under a subsection of a subsection heading

Level 5 Subsection under the three subsections heading

• No heading is needed for the first part of a paper as it is already assumed as the introduction.
• Headings and subheadings are not accompanied by letters or numbers.
• Use as many levels as required in your paper to present the most organized structure.
• The same level of heading or subheading should be of equal importance regardless of the number of subsections under it.
• Use at least two subheadings for each section and subsection, or use none.
• Start with level 1 through 5.
• Paragraph begins below levels 1 and 2, whereas for levels 3-5, the paragraph begins in line with the headings.
• Capitalize each word for levels 1 and 2.
• For levels 3-5, the headings are indented and end with a period.
• Only the first word is capitalized for levels 3-5.

To give you a clearer picture, here is the recommended format and example for the heading levels.

Methods (Level 1)

Research Design (Level 2)

Paragraph begins here…

Study Site and Participant (Level 2)

Data Collection (Level 2)

Instruments. (Level 3) Paragraph begins here…

Procedures. (Level 3) Paragraph begins here…

Socio-demographic and medical history data gathering. (Level 4) Paragraph begins here…

Anthropometric and body composition assessment. (Level 4) Paragraph begins here…

Dietary assessment. (Level 4) Paragraph begins here…

Three-day food record. (Level 5) Paragraph begins here…

Semi-qualitative FFQ. (Level 5) Paragraph begins here…

 A Couple of Writing Tips

Writing is meant to communicate ideas and get our points across as clearly and as effective as possible. But no matter how informative your writing is, it wouldn’t be as valuable if it is incoherent. You have to write in such a way that every part of your paper will have a logical sequence and sound structure to make it comprehensive and easy to understand. There are certain ways in writing a clear and concise paper, and here are simple tips which are especially useful for scientific studies:

First, state your points clearly and precisely .

Second , integrate parts with relevant or similar information to avoid repetition .

Third, use an active voice .

And fourth, organize the structure of your paper.

As a writer, I think the most important among the aforementioned tips is the organization of structure. Once you have a complete picture of what you will include in your paper, everything else will follow.