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How to Create an APA Style Appendix | Format & Examples

Published on October 16, 2020 by Jack Caulfield . Revised on August 9, 2022.

An appendix is a section at the end of an academic text where you include extra information that doesn’t fit into the main text. The plural of appendix is “appendices.”

In an APA Style paper, appendices are placed at the very end, after the reference list .

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Table of contents

Do i need an appendix, appendix format example, organizing and labeling your appendices, frequently asked questions.

You don’t always need to include any appendices. An appendix should present information that supplements the reader’s understanding of your research but is not essential to the argument of your paper . Essential information is included in the main text.

For example, you might include some of the following in an appendix:

• Full transcripts of interviews you conducted (which you can quote from in the main text)
• Documents used in your research, such as questionnaires , instructions, tests, or scales
• Detailed statistical data (often presented in tables or figures )
• Detailed descriptions of equipment used

You should refer to each appendix at least once in the main text. If you don’t refer to any information from an appendix, it should not be included.

When you discuss information that can be found in an appendix, state this the first time you refer to it:

Note that, if you refer to the same interviews again, it’s not necessary to mention the appendix each time.

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The appendix label appears at the top of the page, bold and centered. On the next line, include a descriptive title, also bold and centered.

The text is presented in general APA format : left-aligned, double-spaced, and with page numbers in the top right corner. Start a new page for each new appendix.

The example image below shows how to format an APA Style appendix.

If you include just one appendix, it is simply called “Appendix” and referred to as such in-text:

When more than one appendix is included, they are labeled “Appendix A,” “Appendix B,” and so on.

Present and label your appendices in the order they are referred to in the main text.

Labeling tables and figures in appendices

An appendix may include (or consist entirely of) tables and/or figures . Present these according to the same formatting rules as in the main text.

Tables and figures included in appendices are labeled differently, however. Use the appendix’s letter in addition to a number. Tables and figures are still numbered separately and according to the order they’re referred to in the appendix.

For example, in Appendix A, your tables are Table A1, Table A2, etc; your figures are Figure A1, Figure A2, etc.

The numbering restarts with each appendix: For example, the first table in Appendix B is Table B1; the first figure in Appendix C is Figure C1; and so on. If you only have one appendix, use A1, A2, etc.

If you want to refer specifically to a table or figure from an appendix in the main text, use the table or figure’s label (e.g. “see Table A3”).

If an appendix consists entirely of a single table or figure, simply use the appendix label to refer to the table or figure. For example, if Appendix C is just a table, refer to the table as “Appendix C,” and don’t add an additional label or title for the table itself.

An appendix contains information that supplements the reader’s understanding of your research but is not essential to it. For example:

• Interview transcripts
• Questionnaires
• Detailed descriptions of equipment

Something is only worth including as an appendix if you refer to information from it at some point in the text (e.g. quoting from an interview transcript). If you don’t, it should probably be removed.

Appendices in an APA Style paper appear right at the end, after the reference list and after your tables and figures if you’ve also included these at the end.

When you include more than one appendix in an APA Style paper , they should be labeled “Appendix A,” “Appendix B,” and so on.

When you only include a single appendix, it is simply called “Appendix” and referred to as such in the main text.

Yes, if relevant you can and should include APA in-text citations in your appendices . Use author-date citations as you do in the main text.

Any sources cited in your appendices should appear in your reference list . Do not create a separate reference list for your appendices.

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APA Citation Style 7th Edition

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What goes into an Appendix?

Where is an appendix placed, labeling the appendix, formatting the appendix.

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"Material that supplements the content of the paper, but would be distracting or inappropriate to include in the body of the paper is to be placed in an appendix." This includes "materials that are relatively brief and that are easily presented in print format" ( Publication Manual of the APA: 6th edition , section 2.13; Publication Manual of the APA: 7th edition , section 2.14). Examples include "mathematical proofs, lists of words, a questionnaire used in the research, a detailed description of an apparatus used in the research, etc" ( Purdue OWL .)

An appendix (or appendices) follow the reference list. Use the following order for your paper:

• Abstract ( if required, start on a new page, numbered page 2)
• Text (start on a new page, numbered 3)
• References (start on a new page)
• Tables (start each on a new page)
• Figures (start each on a new page; include caption on page with figure)
• Appendices (start each on a new page)
• If only one appendix, label it Appendix
• If more than one appendix: label each one with a capital letter (Appendix A, Appendix B, etc.) in the order in which it is mentioned in the text
• Each appendix must have a title
• In the text, refer to appendices by their labels:

"produced the same results for both studies (see Appendices A and B for complete proofs)."

• Begin each appendix on a separate page
• At the top of the page, center the word Appendix and the identifying capital letters (A, B, etc.) in the order in which they are mentioned in the text.
• Center the title of the appendix using uppercase and lowercase letter on the next line
• Begin the text of the appendix flush left, followed by indented paragraphs.

A sample appendix is below:

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How to Write an Appendix: Step-by-Step Guide & Examples

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While composing your work, you may stumble upon a question on how to write an appendix.

An appendix is a supplemental section of a research paper that provides additional information, data, or materials to support the main content. The appendix is usually placed at the end of the document and is numbered with letters or numbers, such as "Appendix A," "Appendix B," etc. The purpose of an appendix is to provide readers with supplementary details that are not included in the main text but are relevant to the topic.

Once you decide on writing appendices, you should collect additional information and format your text as required. Here, we will talk about how you can work with appendices. We will also show some nuances of their preparation process using a real example. Is the deadline around the corner? Consider using professional research paper help from expert scholars.

What Is an Appendix: Definition

Experienced researchers know what an appendix in a paper is. But aspiring authors often have problems with this section of the work. First of all, you should understand that appendices are an additional section of a dissertation or any other scientific paper that includes additional information. Main points are not placed in an appendix meanwhile at the end of your work it can expand on some context or clarify author’s position on a particular issue. Also, an appendix is ​​often placed after the citation page of a work. It is indicated with the help of references in a main text.

What Is the Purpose of an Appendix

Quite often, authors don’t understand the purpose of an appendix. This usually looks like a table and is not included in a main text. Remember that content of your dissertation should be concise and clear. It is also undesirable if you deviate from your theme so as not to confuse readers. Therefore, you can provide a reference, which will lead a reader to an appendix of a thesis. Typically, the purpose of an appendix is to extra information that is usually not included in the text's body. It expresses author's point of view, and provides additional information. It may not address the immediate topic of your dissertation or expand on current research. As a reminder, your work should be clear even without studying an appendix. So make sure you don't put important details there.

What Can You Include in an Appendix

An appendix in a paper is a supplement to a main text, not a replacement. You can put different elements there. It is better if you separate appendices, highlighting one element in each of them. Don’t forget about separate references in your text. Otherwise it will be difficult for a reader to understand your information better. Thus, the following information can be added:

• diagrams with illustrative figures;
• abbreviations ;
• interviews;
• statistics, and much more.

There are no restrictions on content added to your dissertation's appendices. Theoretically, you can attach absolutely any information that is relevant to your topic. Thus, possibilities for evidence base are almost unlimited. All you need to do is add tables or any other information.

How to Write an Appendix: Full Guide

If you already have experience working on dissertations and other scientific texts, you will not wonder how to make an appendix. However, it is still important that you get some advice on how to properly structure an appendices section. This will help add information that may be redundant in the main part of your paper. We offer 4 simple steps to create an informative and readable appendix block.

Step 1. Make an Appendix: Include Your Data

When creating an appendix, include extra data in their raw form. That is, you might not have used some details in your main paper. But you want a reader to know more information. For example, it can be calculations, some results of which are mentioned in your main text. Or maybe, you can add some statistics that clearly demonstrate your research paper conclusion . You can also include facts from other scientific sources that support your position. One thing is important — information should complement your text but not contradict it.

Step 2. Include Visual Supporting Documents in an Appendix 

When you are writing an appendix, you can’t avoid visual additions that clearly demonstrate an information and save an author from lengthy descriptions in the text. Should you need to support your conclusions drawn in the scientific text, these can be used:

Don’t forget: you should quote and indicate the authorship of graphics used in your work. If you took it from any third-party sources, of course. Thus, a reader will be able to find additional data that explains the content of your text. It is good if you personally put results of your research in a graphic form. To do this, you can use Office programs, graphic editors and other programs available to PC users.

Step 3. Describe the Instruments of Your Research in Your Appendices

It is good if your appendix in the research paper has a section for indicating tools that were used during the preparation of your dissertation writing . This way, your reader will understand how you collected information and do it themselves. For example, it could be a dictaphone or tape recorder on which an interview with your expert was recorded. Or you might have used a video camera for recording facts and interviews. In such case, it is advisable to indicate these instruments in your appendix. Specialized equipment for measuring, calculating and making graphics should also be added at the beginning of the appendix. This way, you will demonstrate your skills and knowledge. Research units don’t require extra tools, so make sure they are listed. You can do it even in a short format.

Step 4. Include an Interview and Transcripts in an Appendix

When conducting interviews and surveys for collecting information, make an appendix with photocopies of handwritten materials or electronic copies of digital surveys. Their order is not important. The main thing is that your research text contains references. This will allow you to quickly study the sources. You should not only show that the source contains important data but also explain it. So, even additional content, including questions and answers, needs to be listed. But if you originally had a readable format, you don’t need to do this. In addition to interviews, also add screenshots or photos of correspondences used for surveys. For example, you can refer to a significant researcher with whom you exchanged letters. Or maybe you studied subject, together with this researcher, and they gave some comments on a particular issue. Do not know how to write a discussion section of a research paper ? Do not worry, we have the whole article dedicated to this topic.

Formatting an Appendix: Main Rules

Formatting of appendices is required in any case. First of all, provide correct citations. APA, MLA, and Chicago are the most commonly used standards. Although, you should clarify what formatting requirements your institution has. Correct formatting includes:

• Appendix title. Write it at the top of the content page, indicate its title, using letters or numbers for ordering.
• Sorted by mention. Don’t add appendices randomly, it is better to do it in chronological order. That is, as information from it is given in main text.
• Location after bibliography. This is a general requirement that cannot always be met. For example, if your professor wants the appendices to be put before the bibliography, this will have to be done.
• Page numbers. All dissertation pages should be numbered, even if they are blank. This will make the appendix block the part of main text.

Also, review your appendix before approval. Make sure that its content is clear, error-free, and correctly quoted.

Appendix Example

To do the job successfully, it is recommended to have an example of an appendix at hand. Without it, there are usually problems with a choice of font and mentions that appear in main text. We will show you what the appendix itself looks like at the end of the dissertation using a short interview as an example.

We have one more blog in case you wonder what is an abstract in a paper  or need some examples and writing tips.

How to Make an Appendix: Final Thoughts

Thus, we talked about how to write an appendix. It allows you to include additional details, while avoiding writing them in the body of your text. To do this, one can use graphics, transcriptions of conversations, tables and statistics — anything that complements your research. Be sure to clarify formatting requirements of your university. Arrange appendices in an order in which they appear in your text. Try to use your own materials and not take other people's work. In case of unique findings, they can be used in your work.

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Frequently Asked Questions About Appendix Writing

1. how do you add an appendix to an essay.

The inclusion of appendix to an essay is the same as to any other paper. You need to provide references in your text of an essay itself, as well as submit attachments after a bibliography. Don't forget to specify name of an appendix for easy navigation.

2. Do I add references to the appendix?

Yes, this is not only recommended but must be done. In this case the appendix will allow your reader to check the reliability of sources you used. Moreover, if you took any information from third-party sources, this protect you from plagiarism charges.

4. How do you create an appendix in Word?

It is not difficult to prepare an appendix in Word, because this Office program contains all the necessary tools. To get started, choose the same font, font size and indentation that were used in the main text, so as not to visually break away from it. We also recommend that you apply title formatting with built-in Word tools. Place the appendix titles at the top in the center of a page. In this case it will be much easier to navigate the paper.

3. What is an appendix in a report example?

You can include a wide range of information into an appendix in a report. It is better to opt for descriptive formats, though. For example, it can be graphical or mathematical research results, statistics of a certain phenomenon, and questionnaires filled in by other people.

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How to Make an Appendix for a Research Paper

What is an appendix, what can you include in an appendix.

• Texts or paragraph
• Graphs or Charts
• Examples with images, photographs, and illustrations
• Drawings, diagrams, and maps
• Links to websites
• List of suggested reading

The content of an appendix

Visual documents, instruments used, transcripts of interviews and surveys, the format of an appendix, title of the appendix, content order, placement and page numbers, make your appendix perfect.

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Harvard Referencing Guide

Appendix guidelines.

• An appendix (plural appendices) contain material that belongs with your paper, rather than in it. They go at the very end of your paper, after your reference list.
• The appendix can include text, tables, figures, or a combination of these.
• Each appendix starts on a separate page.
• If you have one appendix in your assessment, label the section, Appendix. If there are two or more, label each appendix with a capital letter (e.g. Appendix A, Appendix B etc).
• … showed higher participation rates (see Appendix A).
• As shown in Appendix B, the results …
• If you have written the appendix and used outside materials, just insert the citations in the text of your appendix as normal, and include the full reference in the main reference list for your paper.
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• Research Paper Appendix | Example & Templates

Research Paper Appendix | Example & Templates

Published on 15 August 2022 by Kirsten Dingemanse and Tegan George. Revised on 25 October 2022.

An appendix is a supplementary document that facilitates your reader’s understanding of your research but is not essential to your core argument. Appendices are a useful tool for providing additional information or clarification in a research paper , dissertation , or thesis without making your final product too long.

Appendices help you provide more background information and nuance about your topic without disrupting your text with too many tables and figures or other distracting elements.

We’ve prepared some examples and templates for you, for inclusions such as research protocols, survey questions, and interview transcripts. All are worthy additions to an appendix. You can download these in the format of your choice below.

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Table of contents

What is an appendix in a research paper, what to include in an appendix, how to format an appendix, how to refer to an appendix, where to put your appendices, other components to consider, appendix checklist.

In the main body of your research paper, it’s important to provide clear and concise information that supports your argument and conclusions . However, after doing all that research, you’ll often find that you have a lot of other interesting information that you want to share with your reader.

While including it all in the body would make your paper too long and unwieldy, this is exactly what an appendix is for.

As a rule of thumb, any detailed information that is not immediately needed to make your point can go in an appendix. This helps to keep your main text focused but still allows you to include the information you want to include somewhere in your paper.

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An appendix can be used for different types of information, such as:

• Supplementary results : Research findings  are often presented in different ways, but they don’t all need to go in your paper. The results most relevant to your research question should always appear in the main text, while less significant results (such as detailed descriptions of your sample or supplemental analyses that do not help answer your main question), can be put in an appendix.
• Statistical analyses : If you conducted statistical tests using software like Stata or R, you may also want to include the outputs of your analysis in an appendix.
• Further information on surveys or interviews : Written materials or transcripts related to things such as surveys and interviews can also be placed in an appendix.

You can opt to have one long appendix, but separating components (like interview transcripts, supplementary results, or surveys) into different appendices makes the information simpler to navigate.

Here are a few tips to keep in mind:

• Always start each appendix on a new page.
• Assign it both a number (or letter) and a clear title, such as ‘Appendix A. Interview transcripts’. This makes it easier for your reader to find the appendix, as well as for you to refer back to it in your main text.
• Number and title the individual elements within each appendix (e.g., ‘Transcripts’) to make it clear what you are referring to. Restart the numbering in each appendix at 1.

It is important that you refer to each of your appendices at least once in the main body of your paper. This can be done by mentioning the appendix and its number or letter, either in parentheses or within the main part of a sentence. It is also possible to refer to a particular component of an appendix.

Appendix B presents the correspondence exchanged with the fitness boutique. Example 2. Referring to an appendix component These results (see Appendix 2, Table 1) show that …

It is common to capitalise ‘Appendix’ when referring to a specific appendix, but it is not mandatory. The key is just to make sure that you are consistent throughout your entire paper, similarly to consistency in capitalising headings and titles in academic writing.

However, note that lowercase should always be used if you are referring to appendices in general. For instance, ‘The appendices to this paper include additional information about both the survey and the interviews.’

The simplest option is to add your appendices after the main body of your text, after you finish citing your sources in the citation style of your choice . If this is what you choose to do, simply continue with the next page number. Another option is to put the appendices in a separate document that is delivered with your dissertation.

Remember that any appendices should be listed in your paper’s table of contents .

There are a few other supplementary components related to appendices that you may want to consider. These include:

• List of abbreviations : If you use a lot of abbreviations or field-specific symbols in your dissertation, it can be helpful to create a list of abbreviations .
• Glossary : If you utilise many specialised or technical terms, it can also be helpful to create a glossary .
• Tables, figures and other graphics : You may find you have too many tables, figures, and other graphics (such as charts and illustrations) to include in the main body of your dissertation. If this is the case, consider adding a figure and table list .

Checklist: Appendix

All appendices contain information that is relevant, but not essential, to the main text.

Each appendix starts on a new page.

I have given each appendix a number and clear title.

I have assigned any specific sub-components (e.g., tables and figures) their own numbers and titles.

My appendices are easy to follow and clearly formatted.

I have referred to each appendix at least once in the main text.

Your appendices look great! Use the other checklists to further improve your thesis.

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Dingemanse, K. & George, T. (2022, October 25). Research Paper Appendix | Example & Templates. Scribbr. Retrieved 5 August 2024, from https://www.scribbr.co.uk/thesis-dissertation/appendix/

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AMA Guide - 11th Edition: Paper Formatting

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Explicit instructions for paper format are not given in the AMA manual because publishers provide specific requirements for submitted manuscripts.  These research paper format guidelines have been chosen by faculty for South College students, and can be found in the official South College AMA Style Guide. 

Note:  Your instructor may have specific or additional requirements not listed in this guide.

AMA Paper Formatting Checklist

General format.

• Margins are 1 inch on all sides throughout. 
• Paper is double spaced throughout, including the title page, block quotes, and references.
• Use the serif typeface Times New Roman or Arial. 
• Use a 12pt font size throughout. 
• Pages are numbered consecutively, right aligned in the header, starting on the first page of text. Exclude the title page and, if required, the abstract page.
• All text is center aligned and double spaced.
• Full title of the paper begins a quarter down the page. 
• Authors' full name(s) including middle initials.
• Couse Number - Course Name
• Assignment: Assignment Name if required
• Affiliated institution

Abstract (If Required by Instructor)

• Separate page after the title page.
• Abstract is the section title, it is left aligned and not indented.
• Text is in a block under the section title, it is not indented. 
• Maximum 500 words.
• Does not include quotations or reference citations. 
• Keywords: 
• Introduction
• Body Paragraphs
• Section headings are bold and left aligned. 
• Subsection headings are italicized and left aligned. 
• The first line of each paragraph is indented 1/2 inch.
• There is no extra line space between paragraphs or headings. 
• Block quotes are double spaced, are not indented, and are 1/2 inch from the left margin. 
• Avoid starting a sentence with a number.  If unavoidable, write out the number instead of using Arabic numerals.

Reference List

• References  heading is bold and left aligned at the top of the page.
• References are left aligned. 
• References are numbered in the order they are first cited in the body of the paper. 
• A tab space separates the number and the first name or word of the reference. 

Tables & Figures

Each table is assigned a number based on the order it is used in the article. Following the table number (and just above the table itself) should be a clear but concise title in title case.  All elements in the table are in sentence case.

Footnotes are listed at the bottom of the table, each on its own line. However, to save space, tables with more than a few footnotes can use 2 columns for the footnotes.

For more information on formatting and when to use tables, see the Tables Components section of the AMA Manual online. 

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Similar to tables, each figure is assigned a number based on the order it is used in the article. Types of figures include, but are not limited to, graphs, charts, maps, drawings, and photographs. Some figures use symbols to represent data, and those figures use legends embedded in the graphic to explain those symbols. 

Following the figure number (and just above the figure itself) should be a clear but concise title.  All elements in the table are in sentence case.

For more examples and guidelines for how and when to use figures in a paper, see the Figures section of the AMA Manual online.

Do I use an appendix in AMA?

• What is an appendix?
• How do I use an appendix?
• How do I make an appendix?

Appendices are not regularly used in AMA. AMA formatting prefers that the information, if relevant to the article, be included in the body of the article as a table or figure.  If the appendix is important, AMA favors publishing them online as online only, supplemental materials.  

The AMA Manual of Style does note that an appendix may be used "on rare occasions...for data that cannot easily be represented as a table or figure and are too central to the article to be deposited elsewhere".  The appendix is included at the end of the paper but  before  the references. Sources for any materials in an appendix are then included in the reference list. 

When an appendix is included in an article, it is cited in the text like a table or figure.  

Example:  This kitchen is rated a 5 on the Hazard Scale (Appendix 1). 

Format an appendix the same way you would start a reference list, with "Appendix" at the top left of a new page. If there is more than one appendix, start each on a new page. Appendices are numbered and organized by the order they are referred to in the body of the article.

Example: 

Hazard Scale

• 1 - The room is completely safe and the likelihood of being injured is very low.
• 2 - The room is relatively safe, but injury is likely if one is inattentive to the environment.
• 3 - The room is completely unsafe and injury or illness is very likely.
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Use an Appendix or Annex in Your Research Paper?

'Appendix' and 'annex' are commonly confused in research papers. While the use of an appendix is more common, the annex can also be a valuable way of supplementing your research. The appendix and the annex add supporting/supplementary information. Both are posted online and can be referred to by researchers with a particular interest in your study. The differences between them are context and length.

Updated on July 26, 2022

The terms “appendix” and “annex” are commonly confused in research papers. While the use of an appendix is more common, the annex can also be a valuable way of supplementing your research.

Both the appendix and the annex add supporting/supplementary information (SI), like tables and graphs, datasets, or transcriptions. Both are posted online and can be referred to by researchers with a particular interest in your study (especially if they're open access).

The main differences between these two forms of data supplement are context and length. Appendixes are common and are part of the study; you likely used them in theses and dissertations. Annexes deal with much longer and more detailed sets of information, and they're additional to the study's content. Let's take a deeper look at the differences so you'll never them confused.

What is an appendix?

An appendix is, according to Merriem-Webster, “supplementary material usually attached at the end of a piece of writing.” The word comes from the Latin appendere, which means “cause to hang (from something).” It's included in the paper at the end, usually after the references or bibliography.

Appendixes/Appendices can be seen as materials that supplement rather than complement the research. Read only by those with a specific interest.

Basics of an appendix

The following are generally true of an appendix.

• Included at the end of the manuscript.
• Written by one more of the paper's researchers. Exceptions are items like letters granting ethical clearance for the research or details of the research tools used (see the example later).
• Ties into the research directly; gives greater detail than the main body of the manuscript.
• Not too long. Of course, that's subjective, but generally speaking, it's a page or two rather than dozens of pages, or more.

What to put in an appendix

Some examples of an appendix are:

• Figures and tables
• Photographs
• Raw data (tables, plots, images)
• Questionnaires and interview questions (especially in qualitative research)
• Ethics approvals such as from the IRB
• Correspondences, such as letters or emails

Most research published as a journal article, and particularly as a thesis, will contain appendices rather than annexes.

This paper (PDF link) includes an appendix that details the instruments used in the research. Each test was used in the study, and the author felt the details were important enough to detail in the appendix, too much information to be presented in the main paper.

This chemistry article also presents supplementary data in the appendix. As it's too lengthy to put in print, a downloadable Word file is available. However, it's only data rather than an article or other full and standalone materials, which is likely why it was made into an appendix rather than an annex.

What is an annex?

Merriam-Webster defines an annex as “an added stipulation or statement.” In the context of research, both academic and commercial, annexes are usually separate additions to the research output and are submitted as separate documents.

Annex comes from the French annexer, which means “to join or attach.” Simply put, an annex comes along with (joining or attached to) a research paper. An example might be a UN report relevant to a manuscript, and that will be added as a supporting document, backing up the research findings. Annexes are used for materials that complement the research.

Basics of an annex

• Attached to the research paper as a separate item.
• Often (but not always) produced by someone outside the research team. If, for example, one of the researchers produced a white paper for the government on the research domain and this might complement the research, this could be an annex.
• Can be many pages long.
• Supports or informs the research that has been done; complements it.
• Is not part of the research output presented in the manuscript's body text.

What to put in an annex

Some examples of an annex are...

• Documents mentioned in the manuscript or that may support the manuscript
• News articles
• Lab reports
• Interviews of people mentioned in the manuscript.
• Data from other studies

Almost always, annexes are added to papers that exceed normal journal article lengths. They're supporting materials to lengthy research output, like those often funded by corporate or government funding.

This World Health Organization guidance paper on HIV/AIDS is itself 21 pages long but comes with separate downloadable annexes. The paper details the findings stemming from the research and describes the processes for the trials. On page 5, the paper notes that the annexes are included to give greater details on the clinical trials mentioned in the paper. In this sense, the annexes are for readers who want greater detail.

The paper reviews the trials done in the annex, but because the trials were not part of the research and was done by others, it was added as an annex.

Should you use an appendix or an annex?

Short answer: you should probably use an appendix. That's because they're much more common. Appendices are placed at the end of a document, while annexes are, technically, separate from it. The former is part of the paper, but the latter is not.

Annexes are often long documents, running even to hundreds of pages. Most often, someone an annex's author is someone who's not part of the research team. Appendices, however, are often by a paper's author(s) and are usually not more than a few pages each (though, in the case of datasets, they technically can be quite long).

Annexes are used to verify the research and provide additional, relevant information. They are documents from credible and relevant sources. They offer further insight into the research topic.

Normally, you'll be using appendices, and that's often because of the journal's word count limits. It may be ideal to include tables or charts in-line in the article, but if there's no room, the appendix can provide extra space.

Handling data: A workflow for dealing with data in your SI

Submission and sharing of data are especially key steps in dealing with your SI in appendixes, annexes, and other formats. When you're submitting your article to a journal, there is a common workflow for this:

• Create additional supplementary files (usually as few as possible, a single file is ideal).
• Upload to the journal site or one of the many ‘approved' online data repositories.
• You'll be given a URL to link back to your data files.
• Add this link to the Acknowledgements section of your paper with some text such as “Additional files in support of this article can be found at https://...”

Some commonly used and ostensibly approved online data repositories:

• Harvard Dataverse
• Open Science Framework (OSF)
• Mendeley Data

But don't get carried away!

Supplementary information, including appendixes and annexes, can also be abused. Additional information may be so long/big/dense that it actually may not undergo full peer review even though the rest of the article does.

A study by Pop and Salzberg asserted that journals' word restrictions may cause authors to move key information outside the main manuscript body. In this way, it can avert proper peer review while also being less accessible to the reader. This hinders further investigation because readers have to wade through huge amounts of supplementary documents to find what they're after.

It also robs authors cited in the supplementary information of the recognition they would receive from citations in the body text.

Nature commendably lays out specifics for SI – check them here .

Final thoughts

If you're unsure of what needs to be in your supplementary information, or if you even need an appendix or annex, as well as the English quality and style, a scientific edit can be a big help. Explore AJE's extensive editing services here .

The AJE Team

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CHAPTER FIVE, REFERENCES AND APPENDICES

• February 2021

• University of Arusha

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