psychology research papers in apa style

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APA Sample Paper: Experimental Psychology

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Chapter 11: Presenting Your Research

American Psychological Association (APA) Style

Learning Objectives

• Define APA style and list several of its most important characteristics.
• Identify three levels of APA style and give examples of each.
• Identify multiple sources of information about APA style.

What Is APA Style?

APA style  is a set of guidelines for writing in psychology and related fields. These guidelines are set down in the Publication Manual of the American Psychological Association (APA, 2006) [1] . The  Publication Manual  originated in 1929 as a short journal article that provided basic standards for preparing manuscripts to be submitted for publication (Bentley et al., 1929) [2] . It was later expanded and published as a book by the association and is now in its seventh edition ( view the APA Style website online ). The primary purpose of APA style is to facilitate scientific communication by promoting clarity of expression and by standardizing the organization and content of research articles and book chapters. It is easier to write about research when you know what information to present, the order in which to present it, and even the style in which to present it. Likewise, it is easier to read about research when it is presented in familiar and expected ways.

APA style is best thought of as a “genre” of writing that is appropriate for presenting the results of psychological research—especially in academic and professional contexts. It is not synonymous with “good writing” in general. You would not write a literary analysis for an English class, even if it were based on psychoanalytic concepts, in APA style. You would write it in Modern Language Association (MLA) style instead. And you would not write a newspaper article, even if it were about a new breakthrough in behavioural neuroscience, in APA style. You would write it in Associated Press (AP) style instead. At the same time, you would not write an empirical research report in MLA style, in AP style, or in the style of a romance novel, an e-mail to a friend, or a shopping list. You would write it in APA style. Part of being a good writer in general is adopting a style that is appropriate to the writing task at hand, and for writing about psychological research, this is APA style.

The Levels of APA Style

Because APA style consists of a large number and variety of guidelines—the Publication Manual  is nearly 300 pages long—it can be useful to think about it in terms of three basic levels. The first is the overall  organization  of an article (which is covered in Chapter 2 “Manuscript Structure and Content” of the  Publication Manual ). Empirical research reports, in particular, have several distinct sections that always appear in the same order:

• Title page.  Presents the article title and author names and affiliations.
• Abstract.  Summarizes the research.
• Introduction.  Describes previous research and the rationale for the current study.
• Method.  Describes how the study was conducted.
• Results.  Describes the results of the study.
• Discussion.  Summarizes the study and discusses its implications.
• References.  Lists the references cited throughout the article.

The second level of APA style can be referred to as  high-level style  (covered in Chapter 3 “Writing Clearly and Concisely” of the  Publication Manual ), which includes guidelines for the clear expression of ideas. There are two important themes here. One is that APA-style writing is formal rather than informal. It adopts a tone that is appropriate for communicating with professional colleagues—other researchers and practitioners—who share an interest in the topic. Beyond this shared interest, however, these colleagues are not necessarily similar to the writer or to each other. A graduate student in British Columbia might be writing an article that will be read by a young psychotherapist in Toronto and a respected professor of psychology in Tokyo. Thus formal writing avoids slang, contractions, pop culture references, humour, and other elements that would be acceptable in talking with a friend or in writing informally.

The second theme of high-level APA style is that it is straightforward. This means that it communicates ideas as simply and clearly as possible, putting the focus on the ideas themselves and not on how they are communicated. Thus APA-style writing minimizes literary devices such as metaphor, imagery, irony, suspense, and so on. Again, humour is kept to a minimum. Sentences are short and direct. Technical terms must be used, but they are used to improve communication, not simply to make the writing sound more “scientific.” For example, if participants immersed their hands in a bucket of ice water, it is better just to write this than to write that they “were subjected to a pain-inducement apparatus.” At the same time, however, there is no better way to communicate that a between-subjects design was used than to use the term “between-subjects design.”

APA Style and the Values of Psychology

Robert Madigan and his colleagues have argued that APA style has a purpose that often goes unrecognized (Madigan, Johnson, & Linton, 1995) [3] . Specifically, it promotes psychologists’ scientific values and assumptions. From this perspective, many features of APA style that at first seem arbitrary actually make good sense. Following are several features of APA-style writing and the scientific values or assumptions they reflect.

Another important element of high-level APA style is the avoidance of language that is biased against particular groups. This is not only to avoid offending people—why would you want to offend people who are interested in your work?—but also for the sake of scientific objectivity and accuracy. For example, the term  sexual orientation  should be used instead of  sexual preference  because people do not generally experience their orientation as a “preference,” nor is it as easily changeable as this term suggests (APA Committee on Lesbian, Gay, and Bisexual Concerns Joint Task Force on Guidelines for Psychotherapy With Lesbian, Gay, and Bisexual Clients, 2000) [4] .

The general principles for avoiding biased language are fairly simple. First, be sensitive to labels by avoiding terms that are offensive or have negative connotations. This includes terms that identify people with a disorder or other problem they happen to have. For example,  patients with schizophrenia  is better than  schizophrenics . Second, use more specific terms rather than more general ones. For example,  Chinese Canadians  is better than  Asian Canadians  if everyone in the group is, in fact, Chinese Canadian. Third, avoid objectifying research participants. Instead, acknowledge their active contribution to the research. For example, “The  students completed  the questionnaire” is better than “The  subjects were administered  the questionnaire.” Note that this principle also makes for clearer, more engaging writing. Table 11.1 shows several more examples that follow these general principles.

The previous edition of the  Publication Manual  strongly discouraged the use of the term  subjects  (except for nonhumans) and strongly encouraged the use of participants  instead. The current edition, however, acknowledges that  subjects can still be appropriate in referring to human participants in areas in which it has traditionally been used (e.g., basic memory research). But it also encourages the use of more specific terms when possible:  university  students ,  children , respondents , and so on.

The third level of APA style can be referred to as  low-level style  (which is covered in Chapter 4 “The Mechanics of Style” through Chapter 7 “Reference Examples” of the  Publication Manual .) Low-level style includes all the specific guidelines pertaining to spelling, grammar, references and reference citations, numbers and statistics, figures and tables, and so on. There are so many low-level guidelines that even experienced professionals need to consult the  Publication Manual  from time to time. Table 11.2 contains some of the most common types of APA style errors based on an analysis of manuscripts submitted to one professional journal over a 6-year period (Onwuegbuzie, Combs, Slate, & Frels, 2010) [5] . These errors were committed by professional researchers but are probably similar to those that students commit the most too. See also Note 11.8 “Online APA Style Resources” in this section and, of course, the  Publication Manual  itself.

Online APA Style Resources

The best source of information on APA style is the Publication Manual itself. However, there are also many good websites on APA style, which do an excellent job of presenting the basics for beginning researchers. Here are a few of them.

Purdue Online Writing Lab

Douglas Degelman’s APA Style Essentials [PDF]

Doc Scribe’s APA Style Lite [PDF]

APA-Style References and Citations

Because science is a large-scale collaboration among researchers, references to the work of other researchers are extremely important. Their importance is reflected in the extensive and detailed set of rules for formatting and using them.

At the end of an APA-style article or book chapter is a list that contains references  to all the works cited in the text (and  only  the works cited in the text). The reference list begins on its own page, with the heading “References,” centred in upper and lower case. The references themselves are then listed alphabetically according to the last names of the first named author for each citation. (As in the rest of an APA-style manuscript,  everything  is double-spaced.) Many different kinds of works might be cited in APA-style articles and book chapters, including magazine articles, websites, government documents, and even television shows. Of course, you should consult the  Publication Manual  or Online APA Style Resources for details on how to format them. Here we will focus on formatting references for the three most common kinds of works cited in APA style: journal articles, books, and book chapters.

Journal Articles

For journal articles, the generic format for a reference is as follows:

Author, A. A., Author, B. B., & Author, C. C. (year). Title of article.  Title of Journal, xx (yy), pp–pp. doi:xx.xxxxxxxxxx

Here is a concrete example:

Adair, J. G., & Vohra, N. (2003). The explosion of knowledge, references, and citations: Psychology’s unique response to a crisis.  American Psychologist, 58 (1), 15–23. doi: 10.1037/0003-066X.58.1.15

There are several things to notice here. The reference includes a hanging indent. That is, the first line of the reference is not indented but all subsequent lines are. The authors’ names appear in the same order as on the article, which reflects the authors’ relative contributions to the research. Only the authors’ last names and initials appear, and the names are separated by commas with an ampersand (&) between the last two. This is true even when there are only two authors. Only the first word of the article title is capitalized. The only exceptions are for words that are proper nouns or adjectives (e.g., “Freudian”) or if there is a subtitle, in which case the first word of the subtitle is also capitalized. In the journal title, however, all the important words are capitalized. The journal title and volume number are italicized; however, the issue number (listed within parentheses) is not. At the very end of the reference is the digital object identifier (DOI), which provides a permanent link to the location of the article on the Internet. Include this if it is available. It can generally be found in the record for the item on an electronic database (e.g., PsycINFO) and is usually displayed on the first page of the published article.

For a book, the generic format and a concrete example are as follows:

Author, A. A. (year).  Title of book . Location: Publisher. Kashdan, T., & Biswas-Diener, R. (2014). The upside of your dark side. New York, NY: Hudson Street Press.

Book Chapters

For a chapter in an edited book, the generic format and a concrete example are as follows:

Author, A. A., Author, B. B., & Author, C. C. (year). Title of chapter. In A. A. Editor, B. B. Editor, & C. C. Editor (Eds.),  Title of book  (pp. xxx–xxx). Location: Publisher. Lilienfeld, S. O., & Lynn, S. J. (2003). Dissociative identity disorder: Multiple personalities, multiple controversies. In S. O. Lilienfeld, S. J. Lynn, & J. M. Lohr (Eds.), Science and pseudoscience in clinical psychology (pp. 109–142). New York, NY: Guilford Press.

Notice that references for books and book chapters are similar to those for journal articles, but there are several differences too. For an edited book, the names of the editors appear with their first and middle initials followed by their last names (not the other way around)—with the abbreviation “Eds.” (or “Ed.,” if there is only one) appearing in parentheses immediately after the final editor’s name. Only the first word of a book title is capitalized (with the exceptions noted for article titles), and the entire title is italicized. For a chapter in an edited book, the page numbers of the chapter appear in parentheses after the book title with the abbreviation “pp.” Finally, both formats end with the location of publication and the publisher, separated by a colon.

Reference Citations

When you refer to another researcher’s idea, you must include a reference citation  (in the text) to the work in which that idea originally appeared and a full reference to that work in the reference list. What counts as an idea that must be cited? In general, this includes phenomena discovered by other researchers, theories they have developed, hypotheses they have derived, and specific methods they have used (e.g., specific questionnaires or stimulus materials). Citations should also appear for factual information that is not common knowledge so that other researchers can check that information for themselves. For example, in an article on the effect of cell phone usage on driving ability, the writer might cite official statistics on the number of cell phone–related accidents that occur each year. Among the ideas that do not need citations are widely shared methodological and statistical concepts (e.g., between-subjects design,  t  test) and statements that are so broad that they would be difficult for anyone to argue with (e.g., “Working memory plays a role in many daily activities.”). Be careful, though, because “common knowledge” about human behaviour is often incorrect. Therefore, when in doubt, find an appropriate reference to cite or remove the questionable assertion.

When you cite a work in the text of your manuscript, there are two ways to do it. Both include only the last names of the authors and the year of publication. The first method is to use the authors’ last names in the sentence (with no first names or initials) followed immediately by the year of publication in parentheses. Here are some examples:

Burger (2008) conducted a replication of Milgram’s (1963) original obedience study.

Although many people believe that women are more talkative than men, Mehl, Vazire, Ramirez-Esparza, Slatcher, and Pennebaker (2007) found essentially no difference in the number of words spoken by male and female college students.

Notice several things. First, the authors’ names are treated grammatically as names of people, not as things. It is better to write “a replication of Milgram’s (1963) study” than “a replication of Milgram (1963).” Second, when there are two authors the names are not separated by commas, but when there are three or more authors they are. Third, the word  and  (rather than an ampersand) is used to join the authors’ names. Fourth, the year follows immediately after the final author’s name. An additional point, which is not illustrated in these examples but is illustrated in the sample paper in Section 11.2 “Writing a Research Report in American Psychological Association (APA) Style”, is that the year only needs to be included the first time a particular work is cited in the same paragraph.

The second way to cite an article or a book chapter is parenthetically—including the authors’ last names and the year of publication in parentheses following the idea that is being credited. Here are some examples:

People can be surprisingly obedient to authority figures (Burger, 2008; Milgram, 1963).

Recent evidence suggests that men and women are similarly talkative (Mehl, Vazire, Ramirez-Esparza, Slatcher, & Pennebaker, 2007).

One thing to notice about such parenthetical citations is that they are often placed at the end of the sentence, which minimizes their disruption to the flow of that sentence. In contrast to the first way of citing a work, this way always includes the year—even when the citation is given multiple times in the same paragraph. Notice also that when there are multiple citations in the same set of parentheses, they are organized alphabetically by the name of the first author and separated by semicolons.

There are no strict rules for deciding which of the two citation styles to use. Most articles and book chapters contain a mixture of the two. In general, however, the first approach works well when you want to emphasize the person who conducted the research—for example, if you were comparing the theories of two prominent researchers. It also works well when you are describing a particular study in detail. The second approach works well when you are discussing a general idea and especially when you want to include multiple citations for the same idea.

The third most common error in Table 11.2 has to do with the use of  et al.  This is an abbreviation for the Latin term  et alia , which means “and others.” In APA style, if an article or a book chapter has more than two authors , you should include all their names when you first cite that work. After that, however, you should use the first author’s name followed by “et al.” Here are some examples:

Recall that Mehl et al. (2007) found that women and men spoke about the same number of words per day on average.

There is a strong positive correlation between the number of daily hassles and the number of symptoms people experience (Kanner et al., 1981).

Notice that there is no comma between the first author’s name and “et al.” Notice also that there is no period after “et” but there is one after “al.” This is because “et” is a complete word and “al.” is an abbreviation for the word  alia .

Key Takeaways

• APA style is a set of guidelines for writing in psychology. It is the genre of writing that psychologists use to communicate about their research with other researchers and practitioners.
• APA style can be seen as having three levels. There is the organization of a research article, the high-level style that includes writing in a formal and straightforward way, and the low-level style that consists of many specific rules of grammar, spelling, formatting of references, and so on.
• References and reference citations are an important part of APA style. There are specific rules for formatting references and for citing them in the text of an article.
• Practice: Find a description of a research study in a popular magazine, newspaper, blog, or website. Then identify five specific differences between how that description is written and how it would be written in APA style.
• Walters, F. T., and DeLeon, M. (2010). Relationship Between Intrinsic Motivation and Accuracy of Academic Self-Evaluations Among High School Students. Educational Psychology Quarterly, 23, 234–256.
• Moore, Lilia S. (2007). Ethics in survey research. In M. Williams & P. L. Lee (eds.), Ethical Issues in Psychology (pp. 120–156), Boston, Psychological Research Press.
• Vang, C., Dumont, L. S., and Prescott, M. P. found that left-handed people have a stronger preference for abstract art than right-handed people (2006).
• This result has been replicated several times (Williamson, 1998; Pentecost & Garcia, 2006; Armbruster, 2011)
• Publication Manual of the American Psychological Association (6th ed.) (2010). Washington, D.C.: American Psychological Association. ↵
• Bentley, M., Peerenboom, C. A., Hodge, F. W., Passano, E. B., Warren, H. C., & Washburn, M. F. (1929). Instructions in regard to preparation of manuscript.  Psychological Bulletin, 26 , 57–63. ↵
• Madigan, R., Johnson, S., & Linton, P. (1995). The language of psychology: APA style as epistemology.  American Psychologist, 50 , 428–436. ↵
• American Psychological Association, Committee on Lesbian, Gay, and Bisexual Concerns Joint Task Force on Guidelines for Psychotherapy With Lesbian, Gay, and Bisexual Clients. (2000). Guidelines for psychotherapy with lesbian, gay, and bisexual clients . Washington, DC: Author. Retrieved from https://web.archive.org/web/20081022063811/http://www.apa.org:80/pi/lgbc/guidelines.html ↵
• Onwuegbuzie, A. J., Combs, J. P., Slate, J. R., & Frels, R. K. (2010). Editorial: Evidence-based guidelines for avoiding the most common APA errors in journal article submissions. Research in the Schools, 16 , ix–xxxvi. ↵

A set of guidelines for writing in psychology and related fields.

A book produced by the APA containing standards for preparing manuscripts to be submitted for publication in order to facilitate scientific communication by promoting clarity of expression and standardizing the organization and content of articles and book chapters.

Referring to an article, the sections that are included and what order they appear in.

The second level of APA style which includes guidelines for the clear expression of ideas through writing style.

Third level of APA style which includes all the specific guidelines pertaining to spelling, grammar, references and reference citations, numbers and statistic, figures and tables, and so on.

The source of information used in a research article.

The referral to another researcher’s idea that is written in the text, with the full reference appearing in the reference list.

Research Methods in Psychology - 2nd Canadian Edition Copyright © 2015 by Paul C. Price, Rajiv Jhangiani, & I-Chant A. Chiang is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

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• MJC Library & Learning Center
• Research Guides

PSYCH 122 - Research Methods

• APA Style, 7th Edition
• Select Your Topic
• Develop Your Topic
• Know Your Sources
• Finding Peer-Reviewed Articles
• How to Search the Literature

APA Tutorial

Formatting your paper, headings organize your paper (2.27), video tutorials, reference list format (9.43).

• Elements of a Reference

Reference Examples (Chapter 10)

Dois and urls (9.34-9.36), in-text citations.

• In-Text Citations Format
• In-Text Citations for Specific Source Types

NoodleTools

What is apa style.

APA style was created by social and behavioral scientists to standardize scientific writing. APA style is most often used in:

• psychology,
• social sciences (sociology, business), and

If you're taking courses in any of these areas, be prepared to use APA style.

For in-depth guidance on using this citation style, refer to Publication Manual of the American Psychological Association , 7th ed. We have several copies available at the MJC Library at the call number  BF 76.7 .P83 2020 .

APA Style, 7th ed.

In October 2019, the American Psychological Association made radical changes its style, especially with regard to the format and citation rules for students writing academic papers. Use this guide to learn how to format and cite your papers using APA Style, 7th edition.

You can start by viewing the  video tutorial .

For help on all aspects of formatting your paper in APA Style, see   The Essentials  page on the APA Style website.

• sans serif fonts such as 11-point Calibri, 11-point Arial, or 10-point Lucida Sans Unicode, or
• serif fonts such as 12-point Times New Roman, 11-point Georgia, or normal (10-point) Computer Modern (the default font for LaTeX)
• There are exceptions for the  title page ,  tables ,  figures ,  footnotes , and  displayed equations .
• Margins :  Use 1-in. margins on every side of the page.
• Align the text of an APA Style  paper to the left margin . Leave the right margin uneven, or “ragged.”
• Do not use full justification for student papers.
• Do not insert hyphens (manual breaks) in words at the end of line. However, it is acceptable if your word-processing program automatically inserts breaks in long hyperlinks (such as in a DOI or URL in a reference list entry).
• Indent the first line of each paragraph of text 0.5 in . from the left margin. Use the tab key or the automatic paragraph-formatting function of your word-processing program to achieve the indentation (the default setting is likely already 0.5 in.). Do not use the space bar to create indentation. 
• There are exceptions for the  title page ,  section labels ,  abstract ,  block quotations ,  headings ,  tables and figures ,  reference list , and  appendices .

Paper Elements

Student papers generally include, at a minimum: 

• Title Page (2.3)
• Text (2.11)
• References  (2.12)

Student papers may include additional elements such as tables and figures depending on the assignment. So, please check with your teacher!

Student papers generally  DO NOT  include the following unless your teacher specifically requests it:

• Running head
• Author note

For complete information on the  order of pages , see the APA Style website.

Number your pages consecutively starting with page 1. Each section begins on a new page. Put the pages in the following order:

• Page 1: Title page
• Page 2: Abstract (if your teacher requires an abstract)
• Page 3: Text 
• References begin on a new page after the last page of text
• Footnotes begin on a new page after the references (if your teacher requires footnotes)
• Tables begin each on a new page after the footnotes (if your teacher requires tables) 
• Figures begin on a new page after the tables (if your teacher requires figures)
• Appendices begin on a new page after the tables and/or figures (if your teacher requires appendices)

Sample Papers With Built-In Instructions

To see what your paper should look like, check out these sample papers with built-in instructions.

APA Style uses five (5) levels of headings to help you organize your paper and allow your audience to identify its key points easily. Levels of headings establish the hierarchy of your sections just like you did in your paper outline.

APA tells us to use "only the number of headings necessary to differentiate distinct section in your paper." Therefore, the number of heading levels you create depends on the length and complexity of your paper.

See the chart below for instructions on formatting your headings:

Use Word to Format Your Paper:

Use Google Docs to Format Your Paper:

Placement:  The reference list  appears at the end of the paper, on its own page(s). If your research paper ends on page 8, your References begin on page 9.

Heading:  Place the section label References  in bold at the top of the page, centered.

Arrangement:  Alphabetize entries by author's last name. If source has no named author, alphabetize by the title, ignoring A, An, or The. (9.44-9.48)

Spacing:  Like the rest of the APA paper, the reference list is double-spaced throughout. Be sure NOT to add extra spaces between citations.

Indentation:  To make citations easier to scan, add a  hanging indent  of 0.5 in. to any citation that runs more than one line. Use the paragraph-formatting function of your word processing program to create your hanging indent.  

See Sample References Page (from APA Sample Student Paper):

Elements of Reference List Entries: (Chapter 9)

References generally have four elements, each of which has a corresponding question for you to answer:

• Author:   Who is responsible for this work? (9.7-9.12)
• Date:   When was this work published? (9.13-9.17)
• Title:   What is this work called? (9.18-9.22)
• Source:   Where can I retrieve this work? (9.23-9.37)

By using these four elements and answering these four questions, you should be able to create a citation for any type of source.

For complete information on all of these elements, checkout the APA Style website.

This infographic shows the first page of a journal article. The locations of the reference elements are highlighted with different colors and callouts, and the same colors are used in the reference list entry to show how the entry corresponds to the source.

To create your references, you'll simple look for these elements in your source and put them together in your reference list entry.

American Psychological Association.  Example of where to find reference information for a journal article  [Infographic]. APA Style Center. https://apastyle.apa.org/style-grammar-guidelines/references/basic-principles

Below you'll find two printable handouts showing APA citation examples. The first is an abbreviated list created by MJC Librarians. The second, which is more comprehensive, is from the APA Style website. Feel free to print these for your convenience or use the links to reference examples below:

• APA Citation Examples Created by MJC Librarians for you.
• Common References Examples (APA Handout) Printable handout from the American Psychological Association.
• Journal Article
• Magazine Article
• Newspaper Article
• Edited Book Chapter
• Webpage on a Website

Classroom or Intranet Sources

• Classroom Course Pack Materials
• How to Cite ChatGPT
• Dictionary Entry
• Government Report
• Legal References (Laws & Cases)
• TED Talk References
• Religious Works
• Open Educational Resources (OER)
• Archival Documents and Collections

You can view the entire Reference Examples website below and view a helpful guide to finding useful APA style topics easily:

• APA Style: Reference Examples
• Navigating the not-so-hidden treasures of the APA Style website
• Missing Reference Information

Sometimes you won't be able to find all the elements required for your reference. In that case, see the  instructions in Table 9.1 of the APA style manual in section 9.4 or the APA Style website below:

• Direct Quotation of Material Without Page Numbers

The DOI or URL is the final component of a reference list entry. Because so much scholarship is available and/or retrieved online, most reference list entries end with either a DOI or a URL.

• A  DOI  is a unique alphanumeric string that identifies content and provides a persistent link to its location on the internet. DOIs can be found in database records and the reference lists of published works.
• A  URL  specifies the location of digital information on the internet and can be found in the address bar of your internet browser. URLs in references should link directly to the cited work when possible.

When to Include DOIs and URLs:

• Include a DOI for all works that have a DOI, regardless of whether you used the online version or the print version.
• If an online work has both a DOI and a URL, include only the DOI.
• For works without DOIs from websites (not including academic research databases), provide a URL in the reference (as long as the URL will work for readers).
• For works without DOIs from most academic research databases, do not include a URL or database information in the reference because these works are widely available. The reference should be the same as the reference for a print version of the work.
• For works from databases that publish original, proprietary material available only in that database (such as the UpToDate database) or for works of limited circulation in databases (such as monographs in the ERIC database), include the name of the database or archive and the URL of the work. If the URL requires a login or is session-specific (meaning it will not resolve for readers), provide the URL of the database or archive home page or login page instead of the URL for the work. (See APA Section 9.30 for more information). 
• If the URL is no longer working or no longer provides readers access to the content you intend to cite, try to find an archived version using the Internet Archive , then use the archived URL. If there is no archived URL, do not use that resource.

Format of DOIs and URLs:

Your DOI should look like this: 

https://doi.org/10.1037/a0040251

Follow these guidelines from the APA Style website.

APA Style uses the  author–date citation system , in which a brief in-text citation points your reader to the full reference list entry at the end of your paper. The in-text citation appears within the body of the paper and briefly identifies the cited work by its author and date of publication. This method enables your reader to locate the corresponding entry in the alphabetical reference list at the end of your paper.

Each work you cite  must  appear in the reference list, and each work in the reference list must be cited in the text (or in a table, figure, footnote, or appendix) except for the following (See APA, 8.4):

• Personal communications (8.9)
• General mentions of entire websites, whole periodicals (8.22), and common software and apps (10.10) in the text do not require a citation or reference list entry.
• The source of an epigraph does not usually appear in the reference list (8.35)
• Quotations from your research participants do not need citations or reference list entries (8.36)
• References included in a statistical meta-analysis, which are marked with an asterisk in the reference list, may be cited in the text (or not) at the author’s discretion. This exception is relevant only to authors who are conducting a meta-analysis (9.52).

Formatting Your In-Text Citations

Parenthetical and Narrative Citations: ( See APA Section  8.11)

In APA style you use the author-date citation system for citing references within your paper. You incorporate these references using either a  parenthetical   or a  narrative  style.

Parenthetical Citations

• In parenthetical citations, the author name and publication date appear in parentheses, separated by a comma. (Jones, 2018)
• A parenthetical citation can appear within or at the end of a sentence.
• When the parenthetical citation is at the end of the sentence, put the period or other end punctuation after the closing parenthesis.
• If there is no author, use the first few words of the reference list entry, usually the "Title" of the source: ("Autism," 2008) See APA 8.14
• When quoting, always provide the author, year, and specific page citation or paragraph number for nonpaginated materials in the text (Santa Barbara, 2010, p. 243).  See APA 8.13
• For most citations, the parenthetical reference is placed BEFORE the punctuation: Magnesium can be effective in treating PMS (Haggerty, 2012).

Narrative Citations 

In narrative citations, the author name or title of your source appears within your text and the publication date appears in parentheses immediately after the author name. 

• Santa Barbara (2010) noted a decline in the approval of disciplinary spanking of 26 percentage points from 1968 to 1994.

In-Text Citation Checklist

• In-Text Citation Checklist Use this useful checklist from the American Psychological Association to ensure that you've created your in-text citations correctly.

In-Text Citations for Specific Types of Sources

Quotations from Research Participants

Personal Communications

Secondary Sources  

Use NoodleTools to Cite Your Sources  

NoodleTools can help you create your references and your in-text citations.

• NoodleTools Express No sign in required . When you need one or two quick citations in MLA, APA, or Chicago style, simply generate them in NoodleTools Express then copy and paste what you need into your document. Note: Citations are not saved and cannot be exported to a word processor using NoodleTools Express.
• NoodleTools (Login Full Database) This link opens in a new window Create and organize your research notes, share and collaborate on research projects, compose and error check citations, and complete your list of works cited in MLA, APA, or Chicago style using the full version of NoodleTools. You'll need to Create a Personal ID and password the first time you use NoodleTools.

See How to Use NoodleTools Express to Create a Citation in APA Format

Additional NoodleTools Help

• NoodleTools Help Desk Look up questions and answers on the NoodleTools Web site
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Citation Generators

Stand-alone citation generators. Simply enter the data from your source and create a citation. Always check the result against a current style guide!

• Citation Machine (APA) Citation Machine is a free site that automatically produces APA- (and other) style citations for a variety of sources. This link points to a tool for creating journal citations in APA style. You can select other types of sources by clicking the tabs (book, website, etc.).
• KnightCite (APA) KnightCite is a useful, free citation and bibliography generator. Be sure to register so that you can save your citations, alphabetize them, and export them to Word in order to create your bibliography.
• BibMe Upload your paper to BibMe, and the software will check for unintentional plagiarism and other errors such as grammar and punctuation.
• Excelsior Online Writing Lab (OWL) This resource is similar to the Purdue Online Writing Lab (OWL) with less clutter.
• APA Style Guide Tutorials, FAQs, and other resources to help you improve your writing, master APA Style, and learn the conventions of scholarly publishing.
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APA 7th edition cheat sheet

Manage your sources from start to finish with an integrated reference manager. Zotero and Mendeley are free, and as member of the Pace community you have access to EndNote. All support APA style.

• Zotero Zotero is a free, open source utility that works in the Firefox browser to help users collect, manage and cite sources. It was developed at George Mason University. Highly recommended.

• Mendeley A free reference manager and academic social network. Users can automatically generate bliographies, collaborate with other researchers online, import papers from other research software, find relevant papers, access papers from anywhere online, and read papers on the go with iPhone app.
• EndNote Citation management software for creating bibliographies and references for essays and articles. Available for: Windows and MacOS. ***PACE LOGIN REQUIRED***

• EndNote for Windows (entire YouTube series)

• EndNote for Mac (entire YouTube series)
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Extroversion

How to write an apa paper, tips for scientific writing.

Posted April 20, 2019

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APA style is the formal writing style that is endorsed by the APA (American Psychological Association). It’s got lots of rules (e.g., within a parenthetical citation, use an ampersand (&), but outside a parenthetical, use the word “and” in between the names of authors). And it bears on the entirety of a paper. From the title page to the final concluding sentence. And everything in between. And even a bunch of stuff after.

Back when I was a student, I remember thinking that APA style was arbitrary. Who cares if I didn’t put the year of the publication in the in-text citation? Who cares if I didn’t double-space my references? Why does it matter if the term “Abstract” at the start of the abstract is not centered? Seriously!!!

Years later, I’ve had something of a change of heart when it comes to APA style. If you’re a student of mine, you know that I’d much rather talk about actual content than about the details of APA style now. This said, I do think that mastering APA style is important (even if I’m fuzzy on a rule here or there!).

Why is APA Style Important?

At its core, APA style is a set of guidelines that pertain to manuscripts in scientific psychology that are submitted to journal editors for publication consideration. In other words, this is a format that a paper should be in when you want someone who runs an academic journal to publish your work as an article. An academic journal is pretty much a scholarly magazine that includes a peer-review process before papers are accepted to become articles. Many journal editors receive more manuscript submissions than they have space to publish. Only some fraction of submitted manuscripts will ultimately be accepted for publication in an academic journal.

Before a manuscript (i.e., a paper) is accepted (if the author is so fortunate!), it goes through a rigorous review process. The editor sends the paper out to a few experts on the topic of the paper. These experts read it, provide critical (often VERY critical) feedback, and then the editor takes this feedback into account and makes a determination as to whether the paper should be published as an article in the journal.*

Most journals in psychology and related fields require that the paper is in APA format. So from the perspective of a scholar in the field of the behavioral sciences, you need to master APA format because otherwise, you are probably going to have your papers rejected, even if your ideas are terrific.

Imagine a journal editor who receives 200 manuscripts to review in a given year. But that same editor's journal only has space to publish 40 articles in a year. Some pretty stringent screening is necessary. In the field of academic publishing in psychology, I can tell you this: Basic APA formatting is screen number one. If your paper misses the mark when it comes to APA formatting, good luck getting it published in an academic journal in psychology. Journal editors are way too busy to be dealing with papers that don’t meet basic APA standards.

In training students in the field of scientific psychology, then, it is critical for professors to mentor students in the process of APA writing. This style of writing is considered essential for professionals in the field.

What is APA Style?

APA Style is a method of writing that summarizes a set of scientific ideas. Usually, we think of it as a style that summarizes a report of some scientific study or set of studies that include actual data and a summary of the results. An APA style paper can also describe a proposed study (or set of studies) or it might summarize some theoretical, conceptual ideas on a topic. But a report of actual research is kind of the prototype of an APA-style paper.

So imagine you conducted some study on some psychological variables. Maybe you measured people’s level of extraversion (outgoingness) in a sample of 100 adults. And perhaps you also asked each person in your study to complete a measure of risk taking . And then suppose that your basic finding is that there is a positive and significant relationship between extraversion and risk taking. In short, you found evidence that extraverts tend to report being risky relative to the reports of introverts .

OK. So how would you write that up in a way that was able to convey your findings and their implications to the scientific community? If you look carefully at the overall structure of APA formatting, you will see that at its core, it is all about making it so that your presentation of your research is coherent and well-organized.

First you’ve got your title page. Here, you’re writing a headline and telling the audience who you are and where you come from. You might title this paper something like “Extraverts are Riskier than Introverts Are: A Correlational Study.” The title kind of bottom-lines the study.

Next, you will write an abstract in APA format. I like to think of the abstract as being the version of your paper written for very busy people. If you had to summarize your entire research in 150 words or less, what would you say? What information would be essential? What information could be left out and included in more detail later? Writing a strong and clear abstract is an intellectual skill that is, in my mind, almost without rival. It’s that important.

Next you have your Introduction. Don’t be fooled. Some people call this section the “literature review,” but that’s not a great way to think about it. Sure, you will be reviewing some past literature along the way. But the main thing that you are doing here is telling the reader what the main question is for your research and how this question has been studied in the past. And why it is important. Ultimately, your introduction should be very linear. Each sentence should point toward the next sentence, with this section culminating in a way that makes your research question obviously important and ready to be studied. The final sentence of your introduction for the example used here might be something like “For these reasons, it is important for us to better understand the relationship between extraversion and risk taking.”

After your introduction, you have your Method section. This section should be written as if you are writing down a cookie recipe for someone across the world to follow. Your goal is to have that person bake the cookies in a way that is exactly like you and your mom make them!

The Method section describes the methods by which you collected your data. Who were the participants? What variables did you measure? How did you measure them? etc.

After you describe your methods for data collection, you need to describe what you found. This is your Results section. Here, you describe how you analyzed your data. You might say that you calculated a correlation coefficient between the two main variables (in this example, extraversion and risk taking). You might say how large that effect was and if that effect was in the predicted direction. You could also comment on “statistical significance," speaking to whether the finding was beyond what would be expected by chance.

Your study might have many variables and even experimental manipulations. You might have a lot to say when it comes to your results! This said, always remember that your audience is a person who has limited time and who probably cares about your research way less than you do. So, as is always the case, be parsimonious in writing your Results section. That is, make sure that your writing is streamlined and to the point.

Next, you write your Discussion section. Here, you step back and, literally, discuss your results in a broader sense. What are the implications of your findings? Were you correct with your predictions? Do your findings match past findings on this topic? Do your data tell the world something new? Were there problems and limitations in your data-collection process? What is your bottom-line conclusion—why does your research matter?

And that’s not all! In APA format, you need to then provide a References section. Here, you present the required information on the scholarly sources that you used in your research. By “scholarly,” I mean academic publications. It pains me to say this, but typically, Psychology Today does not count! Here, you will cite academic journal articles that have already been peer-reviewed and published. You may also cite academic books, book chapters, and similar sources. Generally, you should NOT cite websites. And you should DEFINITELY NOT cite Wikipedia. See your university's library for information on what all constitutes a scholarly sources. The library should be full of these kinds of sources!

And here is a tip regarding your References section: The easiest way for someone to spot shoddy APA style is found in your References section. The formatting rules are super-clear and specific. Do not write authors’ first names. Indent after the first line within each reference. Italicize journal titles . etc. Mastering these details is not really that difficult. You simply need to follow the guidance in the APA style guide or in a similar guide on APA style. I personally like to simply check out the details found in the APA sample paper found here . As I tell my students, just follow it! If it is italicized there, italicize it. If the page numbers are listed after the volume number of the journal in the example paper, then do that. If the first words of the journal in a reference are capitalized, then do that. etc. The easiest way to look like an amateur in this field is to botch your APA style when it comes to references. Don’t let that be you!

Bottom Line

APA style may seem arbitrary and unforgiving. But the rules that comprise APA style have, in fact, been well-honed over the years to help present scientific findings in a coherent and meaningful way. Mastering APA is, in fact, an essential part of a psychology education . If you want people in the field to give your ideas any credence whatsoever, make sure that your APA skills are sharp as a tack.

*This is a very abbreviated version of the peer-review process in academic publishing.

Basic References and Resources on APA Style

Geher, G. (2019). Own Your Psychology Major! A Guide to Student Success. Washington, DC: American Psychological Association.

Publication Manual of the American Psychological Association, 6th edition (2009). Washington, DC: American Psychological Association.

APA’s website for APA style: https://www.apastyle.org/

APA Sample Paper: www.apastyle.org/manual/related/sample-experiment-paper-1.pdf

Purdue Owl: https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_style_introduction.html

Glenn Geher, Ph.D. , is professor of psychology at the State University of New York at New Paltz. He is founding director of the campus’ Evolutionary Studies (EvoS) program.

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What is APA Style?

• APA Quick Reference Guide

Paper Formatting Guidelines & Sample Papers

In-text citations & the reference list, examples of references & in-text citations, software tools for apa style, apa publication manual.

Introduction to APA Style

APA stands for American Psychological Association. APA Style is a way to format your paper and give credit to your sources. This page provides resources for all the elements of preparing a research paper in APA Style, including formatting, in-text citations, and the list of references.

Many disciplines use APA Style, including business, education, nursing, psychology and others.

APA Quick Links

• APA Style Website This is the online home of APA Style.
• APA Style Blog The APA Style Blog publishes short articles about writing style guidelines and complicated citation questions you might have.
• Purdue OWL Guide to APA Style Purdue OWL has resources about many citation styles. Here is their section on APA.

APA Quick Reference Guide, page 1 of 2

APA Quick Reference Guide, page 2 of 2

Use the following materials to learn about APA guidelines for different parts of your paper, like the title page, headers and footers, and writing an abstract.

• APA Sample Papers Look at a finished paper in APA format. Use this to set up your paper.
• APA Style Formatting Guide This guide covers formatting rules for all parts of an APA paper.
• Student Title Page guide (PDF) Use this for student papers using the APA 7th Edition.
• Professional Title Page Use this to learn about the differences between student and professional paper title pages.
• Abstract and Keywords Guide (PDF) Use this if you are required to include and abstract and/or keywords for your APA Style paper.
• Tables, Appendices, Footnotes, and Endnotes If your paper has tables, appendices, footnotes, or endnotes, use these guidelines.

Citing sources has two elements: the in-text citation is in the body of your paper when you refer to something that you use from a source, and this citation points to the reference list, where there is more information about each source. 

Purdue University's Online Writing Lab - aka Purdue OWL - is a good online source of information about many citation styles. Many of the following links take you straight to Purdue OWL pages that answer frequent questions about APA Style. 

In-Text Citations

• APA In-Text Citations Basics of in-text citation from Purdue Owl.
• APA In-Text Citations Author Rules Detailed rules from Purdue Owl on how to cite multiple authors.

The Reference List

• Basic Rules for the Reference List This page gives a summary of the reference list, which is the full list of your sources at the end of the paper.
• Citing Books in the Reference List This page has rules and examples for citing books of different types in your reference list.
• Citing Electronic Sources in the Reference List This page has examples and rules for citing journal articles and other things you find through a library database or anywhere online.
• Rules about Authors in the Reference List Does your source have 3 authors? Five authors? More? No author listed? This page gives guidance on how to format author names in the reference list depending on number of authors, missing author, if an organization is an author, etc.
• Citing a Government Website in the Reference List Do you have a source from a government agency? Use these guidelines to create a citation.
• Using DOIs and URLs How to use the doi or URL in electronic journal articles.
• Crossref Search Use Crossref to search for an article's doi.

Article in an Electronic Journal

Reference page entry.

Grady, J.S., Her, M,. Moreno, G., Perez, C., & Yelinek, J. (2019). Emotions in storybooks: A comparison of storybooks that represent ethnic and racial groups in the United States.  Psychology of Popular Media Culture, 8 (3), 207-217. https://doi.org/10.1037/ppm0000185

In-Text Citation

(Grady et al., 2019, p. 208)

Newspaper Article

Carey, B. (2019, March 22). Can we get better at forgetting? The New York Times . https://www.nytimes.com/2019/03/22/health/memory-forgetting-psychology.html

(Carey, 2019)

Rabinowitz, F.E (2019). Deepening group psychotherapy with men: Stories and insights for the journey . American Psychological Association. https://doi.org/10.1037/00001132-000

(Rabinowitz, 2019)

Chapter of a Book

Aron, L., Botella, M., & Lubart. (2019). Culinary arts:  Talent and their developments. In R. F. Subotnik, P. Olszewski-Kubilius, & F. C. Worrell (Eds.), The psychology of high performance: Developing human potential into domain-specific talent (pp. 345-359). American Psychological Association. https://doi.org/10.1037/0000120-016

(Aron et al., 2019)

Webpage on a Website

National Institute of Mental Health. (2018, July). Anxiety disorders . U.S. Department of Health and Human Services, National Institutes of Health. https://www.nimh.nih.gov/health/topics/anxiety-disorders/indnex.shtml

(National Institute of Mental Health, 2018)

There are many tools that can help you create, manage, and organize your citations and your references page. Here are some that the library provides or recommends for students and faculty. 

• Academic Writer This link opens in a new window Many psychology courses use Academic Writer. Academic Writer is a tool that provides the resources necessary to learn, research, write, and publish in APA Style, directly from the creators of and experts on APA Style, the American Psychological Association. You can make an account on Academic Writer with your Caldwell email address.
• NoodleTools This link opens in a new window NoodleTools is an online tool that helps you with note taking, and correctly formatting citations. MLA, APA, and Chicago/Turabian citation styles are included. Use throughout your research project to track sources, take notes, create outlines, collaborate with classmates, and format bibliographies. Use this link to create an account.
• ZoteroBib ZoteroBib is a free service that helps you build a bibliography from any computer or device, without creating an account or installing any software. It's from the team behind the open source citation management app Zotero. ZBib can create a draft citation from a link or ISBN and has helpful templates for you to use to manually create citations. You can use it for MLA, APA, or Chicago Style.
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11.1 American Psychological Association (APA) Style

Learning objectives.

• Define APA style and list several of its most important characteristics.
• Identify three levels of APA style and give examples of each.
• Identify multiple sources of information about APA style.

What Is APA Style?

APA style is a set of guidelines for writing in psychology and related fields. These guidelines are set down in the Publication Manual of the American Psychological Association (APA, 2006). The Publication Manual originated in 1929 as a short journal article that provided basic standards for preparing manuscripts to be submitted for publication (Bentley et al., 1929). It was later expanded and published as a book by the association and is now in its sixth edition. The primary purpose of APA style is to facilitate scientific communication by promoting clarity of expression and by standardizing the organization and content of research articles and book chapters. It is easier to write about research when you know what information to present, the order in which to present it, and even the style in which to present it. Likewise, it is easier to read about research when it is presented in familiar and expected ways.

APA style is best thought of as a “genre” of writing that is appropriate for presenting the results of psychological research—especially in academic and professional contexts. It is not synonymous with “good writing” in general. You would not write a literary analysis for an English class, even if it were based on psychoanalytic concepts, in APA style. You would write it in Modern Language Association (MLA) style instead. And you would not write a newspaper article, even if it were about a new breakthrough in behavioral neuroscience, in APA style. You would write it in Associated Press (AP) style instead. At the same time, you would not write an empirical research report in MLA style, in AP style, or in the style of a romance novel, an e-mail to a friend, or a shopping list. You would write it in APA style. Part of being a good writer in general is adopting a style that is appropriate to the writing task at hand, and for writing about psychological research, this is APA style.

The Levels of APA Style

Because APA style consists of a large number and variety of guidelines—the Publication Manual is nearly 300 pages long—it can be useful to think about it in terms of three basic levels. The first is the overall organization of an article (which is covered in Chapter 2 “Getting Started in Research” of the Publication Manual ). Empirical research reports, in particular, have several distinct sections that always appear in the same order:

• Title page. Presents the article title and author names and affiliations.
• Abstract. Summarizes the research.
• Introduction. Describes previous research and the rationale for the current study.
• Method. Describes how the study was conducted.
• Results. Describes the results of the study.
• Discussion. Summarizes the study and discusses its implications.
• References. Lists the references cited throughout the article.

The second level of APA style can be referred to as high-level style (covered in Chapter 3 “Research Ethics” of the Publication Manual ), which includes guidelines for the clear expression of ideas. There are two important themes here. One is that APA-style writing is formal rather than informal. It adopts a tone that is appropriate for communicating with professional colleagues—other researchers and practitioners—who share an interest in the topic. Beyond this shared interest, however, these colleagues are not necessarily similar to the writer or to each other. A graduate student in California might be writing an article that will be read by a young psychotherapist in New York City and a respected professor of psychology in Tokyo. Thus formal writing avoids slang, contractions, pop culture references, humor, and other elements that would be acceptable in talking with a friend or in writing informally.

The second theme of high-level APA style is that it is straightforward. This means that it communicates ideas as simply and clearly as possible, putting the focus on the ideas themselves and not on how they are communicated. Thus APA-style writing minimizes literary devices such as metaphor, imagery, irony, suspense, and so on. Again, humor is kept to a minimum. Sentences are short and direct. Technical terms must be used, but they are used to improve communication, not simply to make the writing sound more “scientific.” For example, if participants immersed their hands in a bucket of ice water, it is better just to write this than to write that they “were subjected to a pain-inducement apparatus.” At the same time, however, there is no better way to communicate that a between-subjects design was used than to use the term “between-subjects design.”

APA Style and the Values of Psychology

Robert Madigan and his colleagues have argued that APA style has a purpose that often goes unrecognized (Madigan, Johnson, & Linton, 1995). Specifically, it promotes psychologists’ scientific values and assumptions. From this perspective, many features of APA style that at first seem arbitrary actually make good sense. Following are several features of APA-style writing and the scientific values or assumptions they reflect.

Another important element of high-level APA style is the avoidance of language that is biased against particular groups. This is not only to avoid offending people—why would you want to offend people who are interested in your work?—but also for the sake of scientific objectivity and accuracy. For example, the term sexual orientation should be used instead of sexual preference because people do not generally experience their orientation as a “preference,” nor is it as easily changeable as this term suggests (Committee on Lesbian and Gay Concerns, APA, 1991).

The general principles for avoiding biased language are fairly simple. First, be sensitive to labels by avoiding terms that are offensive or have negative connotations. This includes terms that identify people with a disorder or other problem they happen to have. For example, patients with schizophrenia is better than schizophrenics . Second, use more specific terms rather than more general ones. For example, Mexican Americans is better than Hispanics if everyone in the group is, in fact, Mexican American. Third, avoid objectifying research participants. Instead, acknowledge their active contribution to the research. For example, “The students completed the questionnaire” is better than “The subjects were administered the questionnaire.” Note that this principle also makes for clearer, more engaging writing. Table 11.1 “Examples of Avoiding Biased Language” shows several more examples that follow these general principles.

Table 11.1 Examples of Avoiding Biased Language

The previous edition of the Publication Manual strongly discouraged the use of the term subjects (except for nonhumans) and strongly encouraged the use of participants instead. The current edition, however, acknowledges that subjects can still be appropriate in referring to human participants in areas in which it has traditionally been used (e.g., basic memory research). But it also encourages the use of more specific terms when possible: college students , children , respondents , and so on.

The third level of APA style can be referred to as low-level style (which is covered in Chapter 4 “Theory in Psychology” through Chapter 7 “Nonexperimental Research” of the Publication Manual .) Low-level style includes all the specific guidelines pertaining to spelling, grammar, references and reference citations, numbers and statistics, figures and tables, and so on. There are so many low-level guidelines that even experienced professionals need to consult the Publication Manual from time to time. Table 11.2 “Top 10 APA Style Errors” contains some of the most common types of APA style errors based on an analysis of manuscripts submitted to one professional journal over a 6-year period (Onwuegbuzie, Combs, Slate, & Frels, 2010). These errors were committed by professional researchers but are probably similar to those that students commit the most too. See also Note 11.8 “Online APA Style Resources” in this section and, of course, the Publication Manual itself.

Table 11.2 Top 10 APA Style Errors

Online APA Style Resources

The best source of information on APA style is the Publication Manual itself. However, there are also many good websites on APA style, which do an excellent job of presenting the basics for beginning researchers. Here are a few of them.

http://www.apastyle.org

Doc Scribe’s APA Style Lite

http://www.docstyles.com/apalite.htm

Purdue Online Writing Lab

http://owl.english.purdue.edu/owl/resource/560/01

Douglas Degelman’s APA Style Essentials

http://www.vanguard.edu/Home/AcademicResources/Faculty/DougDegelman/APAStyleEssentials.aspx

APA-Style References and Citations

Because science is a large-scale collaboration among researchers, references to the work of other researchers are extremely important. Their importance is reflected in the extensive and detailed set of rules for formatting and using them.

At the end of an APA-style article or book chapter is a list that contains references to all the works cited in the text (and only the works cited in the text). The reference list begins on its own page, with the heading “References,” centered in upper and lower case. The references themselves are then listed alphabetically according to the last names of the first named author for each citation. (As in the rest of an APA-style manuscript, everything is double-spaced.) Many different kinds of works might be cited in APA-style articles and book chapters, including magazine articles, websites, government documents, and even television shows. Of course, you should consult the Publication Manual or Online APA Style Resources for details on how to format them. Here we will focus on formatting references for the three most common kinds of works cited in APA style: journal articles, books, and book chapters.

Journal Articles

For journal articles, the generic format for a reference is as follows:

Author, A. A., Author, B. B., & Author, C. C. (year). Title of article. Title of Journal, xx , pp–pp. doi:xx.xxxxxxxxxx

Here is a concrete example:

Adair, J. G., & Vohra, N. (2003). The explosion of knowledge, references, and citations: Psychology’s unique response to a crisis. American Psychologist, 58 , 15–23. doi: 10.1037/0003-066X.58.1.15

There are several things to notice here. The reference includes a hanging indent. That is, the first line of the reference is not indented but all subsequent lines are. The authors’ names appear in the same order as on the article, which reflects the authors’ relative contributions to the research. Only the authors’ last names and initials appear, and the names are separated by commas with an ampersand (&) between the last two. This is true even when there are only two authors. Only the first word of the article title is capitalized. The only exceptions are for words that are proper nouns or adjectives (e.g., “Freudian”) or if there is a subtitle, in which case the first word of the subtitle is also capitalized. In the journal title, however, all the important words are capitalized. The journal title and volume number are italicized. At the very end of the reference is the digital object identifier (DOI), which provides a permanent link to the location of the article on the Internet. Include this if it is available. It can generally be found in the record for the item on an electronic database (e.g., PsycINFO) and is usually displayed on the first page of the published article.

For a book, the generic format and a concrete example are as follows:

Author, A. A. (year). Title of book . Location: Publisher.

Milgram, S. (1974). Obedience to authority: An experimental view . New York, NY: Harper & Row.

Book Chapters

For a chapter in an edited book, the generic format and a concrete example are as follows:

Author, A. A., Author, B. B., & Author, C. C. (year). Title of chapter. In A. A. Editor, B. B. Editor, & C. C. Editor (Eds.), Title of book (pp. xxx–xxx). Location: Publisher.

Lilienfeld, S. O., & Lynn, S. J. (2003). Dissociative identity disorder: Multiple personalities, multiple controversies. In S. O. Lilienfeld, S. J. Lynn, & J. M. Lohr (Eds.), Science and pseudoscience in clinical psychology (pp. 109–142). New York, NY: Guilford Press.

Notice that references for books and book chapters are similar to those for journal articles, but there are several differences too. For an edited book, the names of the editors appear with their first and middle initials followed by their last names (not the other way around)—with the abbreviation “Eds.” (or “Ed.,” if there is only one) appearing in parentheses immediately after the final editor’s name. Only the first word of a book title is capitalized (with the exceptions noted for article titles), and the entire title is italicized. For a chapter in an edited book, the page numbers of the chapter appear in parentheses after the book title with the abbreviation “pp.” Finally, both formats end with the location of publication and the publisher, separated by a colon.

Reference Citations

When you refer to another researcher’s idea, you must include a reference citation (in the text) to the work in which that idea originally appeared and a full reference to that work in the reference list. What counts as an idea that must be cited? In general, this includes phenomena discovered by other researchers, theories they have developed, hypotheses they have derived, and specific methods they have used (e.g., specific questionnaires or stimulus materials). Citations should also appear for factual information that is not common knowledge so that other researchers can check that information for themselves. For example, in an article on the effect of cell phone usage on driving ability, the writer might cite official statistics on the number of cell phone–related accidents that occur each year. Among the ideas that do not need citations are widely shared methodological and statistical concepts (e.g., between-subjects design, t test) and statements that are so broad that they would be difficult for anyone to argue with (e.g., “Working memory plays a role in many daily activities.”). Be careful, though, because “common knowledge” about human behavior is often incorrect. Therefore, when in doubt, find an appropriate reference to cite or remove the questionable assertion.

When you cite a work in the text of your manuscript, there are two ways to do it. Both include only the last names of the authors and the year of publication. The first method is to use the authors’ last names in the sentence (with no first names or initials) followed immediately by the year of publication in parentheses. Here are some examples:

Burger (2008) conducted a replication of Milgram’s (1963) original obedience study.

Although many people believe that women are more talkative than men, Mehl, Vazire, Ramirez-Esparza, Slatcher, and Pennebaker (2007) found essentially no difference in the number of words spoken by male and female college students.

Notice several things. First, the authors’ names are treated grammatically as names of people, not as things. It is better to write “a replication of Milgram’s (1963) study” than “a replication of Milgram (1963).” Second, when there are two authors the names are not separated by commas, but when there are three or more authors they are. Third, the word and (rather than an ampersand) is used to join the authors’ names. Fourth, the year follows immediately after the final author’s name. An additional point, which is not illustrated in these examples but is illustrated in the sample paper in Section 11.2 “Writing a Research Report in American Psychological Association (APA) Style” , is that the year only needs to be included the first time a particular work is cited in the same paragraph.

The second way to cite an article or a book chapter is parenthetically—including the authors’ last names and the year of publication in parentheses following the idea that is being credited. Here are some examples:

People can be surprisingly obedient to authority figures (Burger, 2008; Milgram, 1963).

Recent evidence suggests that men and women are similarly talkative (Mehl, Vazire, Ramirez-Esparza, Slatcher, & Pennebaker, 2007).

One thing to notice about such parenthetical citations is that they are often placed at the end of the sentence, which minimizes their disruption to the flow of that sentence. In contrast to the first way of citing a work, this way always includes the year—even when the citation is given multiple times in the same paragraph. Notice also that when there are multiple citations in the same set of parentheses, they are organized alphabetically by the name of the first author and separated by semicolons.

There are no strict rules for deciding which of the two citation styles to use. Most articles and book chapters contain a mixture of the two. In general, however, the first approach works well when you want to emphasize the person who conducted the research—for example, if you were comparing the theories of two prominent researchers. It also works well when you are describing a particular study in detail. The second approach works well when you are discussing a general idea and especially when you want to include multiple citations for the same idea.

The third most common error in Table 11.2 “Top 10 APA Style Errors” has to do with the use of et al. This is an abbreviation for the Latin term et alia , which means “and others.” In APA style, if an article or a book chapter has more than two authors, you should include all their names when you first cite that work. After that, however, you should use the first author’s name followed by “et al.” Here are some examples:

Recall that Mehl et al. (2007) found that women and men spoke about the same number of words per day on average.

There is a strong positive correlation between the number of daily hassles and the number of symptoms people experience (Kanner et al., 1981).

Notice that there is no comma between the first author’s name and “et al.” Notice also that there is no period after “et” but there is one after “al.” This is because “et” is a complete word and “al.” is an abbreviation for the word alia .

Key Takeaways

• APA style is a set of guidelines for writing in psychology. It is the genre of writing that psychologists use to communicate about their research with other researchers and practitioners.
• APA style can be seen as having three levels. There is the organization of a research article, the high-level style that includes writing in a formal and straightforward way, and the low-level style that consists of many specific rules of grammar, spelling, formatting of references, and so on.
• References and reference citations are an important part of APA style. There are specific rules for formatting references and for citing them in the text of an article.
• Practice: Find a description of a research study in a popular magazine, newspaper, blog, or website. Then identify five specific differences between how that description is written and how it would be written in APA style.

Practice: Find and correct the errors in the following fictional APA-style references and citations.

• Walters, F. T., and DeLeon, M. (2010). Relationship Between Intrinsic Motivation and Accuracy of Academic Self-Evaluations Among High School Students. Educational Psychology Quarterly , 23, 234–256.
• Moore, Lilia S. (2007). Ethics in survey research. In M. Williams & P. L. Lee (eds.), Ethical Issues in Psychology (pp. 120–156), Boston, Psychological Research Press.
• Vang, C., Dumont, L. S., and Prescott, M. P. found that left-handed people have a stronger preference for abstract art than right-handed people (2006).
• This result has been replicated several times (Williamson, 1998; Pentecost & Garcia, 2006; Armbruster, 2011)

American Psychological Association. (2006). Publication Manual of the American Psychological Association (6th ed.). Washington, DC: American Psychological Association.

Bentley, M., Peerenboom, C. A., Hodge, F. W., Passano, E. B., Warren, H. C., & Washburn, M. F. (1929). Instructions in regard to preparation of manuscript. Psychological Bulletin, 26 , 57–63.

Committee on Lesbian and Gay Concerns, American Psychological Association. (1991). Avoiding heterosexual bias in language. American Psychologist, 46 , 973–974. Retrieved from http://www.apa.org/pi/lgbt/resources/language.aspx .

Madigan, R., Johnson, S., & Linton, P. (1995). The language of psychology: APA style as epistemology. American Psychologist, 50 , 428–436.

Onwuegbuzie, A. J., Combs, J. P., Slate, J. R., & Frels, R. K. (2010). Editorial: Evidence-based guidelines for avoiding the most common APA errors in journal article submissions. Research in the Schools, 16 , ix–xxxvi.

Research Methods in Psychology Copyright © 2016 by University of Minnesota is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

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• Knowledge Base
• APA Style 7th edition
• How to write an APA results section

Reporting Research Results in APA Style | Tips & Examples

Published on December 21, 2020 by Pritha Bhandari . Revised on January 17, 2024.

The results section of a quantitative research paper is where you summarize your data and report the findings of any relevant statistical analyses.

The APA manual provides rigorous guidelines for what to report in quantitative research papers in the fields of psychology, education, and other social sciences.

Use these standards to answer your research questions and report your data analyses in a complete and transparent way.

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Table of contents

What goes in your results section, introduce your data, summarize your data, report statistical results, presenting numbers effectively, what doesn’t belong in your results section, frequently asked questions about results in apa.

In APA style, the results section includes preliminary information about the participants and data, descriptive and inferential statistics, and the results of any exploratory analyses.

Include these in your results section:

• Participant flow and recruitment period. Report the number of participants at every stage of the study, as well as the dates when recruitment took place.
• Missing data . Identify the proportion of data that wasn’t included in your final analysis and state the reasons.
• Any adverse events. Make sure to report any unexpected events or side effects (for clinical studies).
• Descriptive statistics . Summarize the primary and secondary outcomes of the study.
• Inferential statistics , including confidence intervals and effect sizes. Address the primary and secondary research questions by reporting the detailed results of your main analyses.
• Results of subgroup or exploratory analyses, if applicable. Place detailed results in supplementary materials.

Write up the results in the past tense because you’re describing the outcomes of a completed research study.

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Before diving into your research findings, first describe the flow of participants at every stage of your study and whether any data were excluded from the final analysis.

Participant flow and recruitment period

It’s necessary to report any attrition, which is the decline in participants at every sequential stage of a study. That’s because an uneven number of participants across groups sometimes threatens internal validity and makes it difficult to compare groups. Be sure to also state all reasons for attrition.

If your study has multiple stages (e.g., pre-test, intervention, and post-test) and groups (e.g., experimental and control groups), a flow chart is the best way to report the number of participants in each group per stage and reasons for attrition.

Also report the dates for when you recruited participants or performed follow-up sessions.

Missing data

Another key issue is the completeness of your dataset. It’s necessary to report both the amount and reasons for data that was missing or excluded.

Data can become unusable due to equipment malfunctions, improper storage, unexpected events, participant ineligibility, and so on. For each case, state the reason why the data were unusable.

Some data points may be removed from the final analysis because they are outliers—but you must be able to justify how you decided what to exclude.

If you applied any techniques for overcoming or compensating for lost data, report those as well.

Adverse events

For clinical studies, report all events with serious consequences or any side effects that occured.

Descriptive statistics summarize your data for the reader. Present descriptive statistics for each primary, secondary, and subgroup analysis.

Don’t provide formulas or citations for commonly used statistics (e.g., standard deviation) – but do provide them for new or rare equations.

Descriptive statistics

The exact descriptive statistics that you report depends on the types of data in your study. Categorical variables can be reported using proportions, while quantitative data can be reported using means and standard deviations . For a large set of numbers, a table is the most effective presentation format.

Include sample sizes (overall and for each group) as well as appropriate measures of central tendency and variability for the outcomes in your results section. For every point estimate , add a clearly labelled measure of variability as well.

Be sure to note how you combined data to come up with variables of interest. For every variable of interest, explain how you operationalized it.

According to APA journal standards, it’s necessary to report all relevant hypothesis tests performed, estimates of effect sizes, and confidence intervals.

When reporting statistical results, you should first address primary research questions before moving onto secondary research questions and any exploratory or subgroup analyses.

Present the results of tests in the order that you performed them—report the outcomes of main tests before post-hoc tests, for example. Don’t leave out any relevant results, even if they don’t support your hypothesis.

Inferential statistics

For each statistical test performed, first restate the hypothesis , then state whether your hypothesis was supported and provide the outcomes that led you to that conclusion.

Report the following for each hypothesis test:

• the test statistic value,
• the degrees of freedom ,
• the exact p- value (unless it is less than 0.001),
• the magnitude and direction of the effect.

When reporting complex data analyses, such as factor analysis or multivariate analysis, present the models estimated in detail, and state the statistical software used. Make sure to report any violations of statistical assumptions or problems with estimation.

Effect sizes and confidence intervals

For each hypothesis test performed, you should present confidence intervals and estimates of effect sizes .

Confidence intervals are useful for showing the variability around point estimates. They should be included whenever you report population parameter estimates.

Effect sizes indicate how impactful the outcomes of a study are. But since they are estimates, it’s recommended that you also provide confidence intervals of effect sizes.

Subgroup or exploratory analyses

Briefly report the results of any other planned or exploratory analyses you performed. These may include subgroup analyses as well.

Subgroup analyses come with a high chance of false positive results, because performing a large number of comparison or correlation tests increases the chances of finding significant results.

If you find significant results in these analyses, make sure to appropriately report them as exploratory (rather than confirmatory) results to avoid overstating their importance.

While these analyses can be reported in less detail in the main text, you can provide the full analyses in supplementary materials.

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The AI-powered Citation Checker helps you avoid common mistakes such as:

• Missing commas and periods
• Incorrect usage of “et al.”
• Ampersands (&) in narrative citations
• Missing reference entries

To effectively present numbers, use a mix of text, tables , and figures where appropriate:

• To present three or fewer numbers, try a sentence ,
• To present between 4 and 20 numbers, try a table ,
• To present more than 20 numbers, try a figure .

Since these are general guidelines, use your own judgment and feedback from others for effective presentation of numbers.

Tables and figures should be numbered and have titles, along with relevant notes. Make sure to present data only once throughout the paper and refer to any tables and figures in the text.

Formatting statistics and numbers

It’s important to follow capitalization , italicization, and abbreviation rules when referring to statistics in your paper. There are specific format guidelines for reporting statistics in APA , as well as general rules about writing numbers .

If you are unsure of how to present specific symbols, look up the detailed APA guidelines or other papers in your field.

It’s important to provide a complete picture of your data analyses and outcomes in a concise way. For that reason, raw data and any interpretations of your results are not included in the results section.

It’s rarely appropriate to include raw data in your results section. Instead, you should always save the raw data securely and make them available and accessible to any other researchers who request them.

Making scientific research available to others is a key part of academic integrity and open science.

Interpretation or discussion of results

This belongs in your discussion section. Your results section is where you objectively report all relevant findings and leave them open for interpretation by readers.

While you should state whether the findings of statistical tests lend support to your hypotheses, refrain from forming conclusions to your research questions in the results section.

Explanation of how statistics tests work

For the sake of concise writing, you can safely assume that readers of your paper have professional knowledge of how statistical inferences work.

In an APA results section , you should generally report the following:

• Participant flow and recruitment period.
• Missing data and any adverse events.
• Descriptive statistics about your samples.
• Inferential statistics , including confidence intervals and effect sizes.
• Results of any subgroup or exploratory analyses, if applicable.

According to the APA guidelines, you should report enough detail on inferential statistics so that your readers understand your analyses.

• the test statistic value
• the degrees of freedom
• the exact p value (unless it is less than 0.001)
• the magnitude and direction of the effect

You should also present confidence intervals and estimates of effect sizes where relevant.

In APA style, statistics can be presented in the main text or as tables or figures . To decide how to present numbers, you can follow APA guidelines:

• To present three or fewer numbers, try a sentence,
• To present between 4 and 20 numbers, try a table,
• To present more than 20 numbers, try a figure.

Results are usually written in the past tense , because they are describing the outcome of completed actions.

The results chapter or section simply and objectively reports what you found, without speculating on why you found these results. The discussion interprets the meaning of the results, puts them in context, and explains why they matter.

In qualitative research , results and discussion are sometimes combined. But in quantitative research , it’s considered important to separate the objective results from your interpretation of them.

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Academic and Writing Resources

• Writing Research Papers

Writing Research Papers 

Information and resources.

One of the most important skills that you can learn in this department is how to write a research paper.  For many of you, this will be in fulfillment of the Psychology B.S. Degree Research Paper requirement and/or the Psychology Honors Program Thesis requirement.  You may also be writing an American Psychological Association (APA) formatted research paper for a Psychology course (such as a term paper or a summary of an empirical research paper).  In some cases, such as for certain job, graduate school, and fellowship applications, you may be asked to provide a writing sample; a well-written research paper can be ideal for that purpose.  The ability to write research papers is crucial for those who wish to pursue graduate school and research careers.  To assist with these potential goals, we’ve gathered important information and helpful tips for you.

Should I Use a Specific Format and Style?

In the psychological sciences, it is common for research papers to adhere to the guidelines of the Publication Manual of the American Psychological Association (papers in other fields often use APA format as well).  APA guidelines not only specify the types of sections that a research paper should have, but also the order of those sections, the manner in which scholarly sources should be cited in the text and in a separate references section, appropriate methods of reporting experimental and statistical results, the proper use of language, and other details.  A well-written psychology research paper typically follows those guidelines .

How to Write a Successful Research Paper in APA Style

For more information on writing research papers in APA style, please checking out the following pages.  Here you’ll find details on multiple aspects of the research paper writing process, ranging from how the paper should be structured to how to write more effectively.

• Structure and Format – the critical components of each section of an APA-formatted research paper (Introduction, Methods, and on), as well as how those sections should be formatted according to APA guidelines.

► Structure of Research Papers in APA Style

► Formatting Research Papers in APA Style

• Finding, Evaluating, and Citing References – how to search databases, how to obtain references, how to take notes when reading references, what types of references to use, how to include in-text citations, and how to create an APA-formatted reference list.

► Using Databases and Finding References

► What Types of References Are Appropriate for Research Papers?

► Evaluating References and Taking Notes

► Citing References in APA Style

• Writing a Literature Review, the Writing Process, and Improving Writing – how to write a literature review (an overview or summary of prior research, which is a common technique of introducing a research topic in the early sections of a paper), as well as recommendations for the writing process, improving clarity and conciseness, examples of adequate and better paragraphs, and links to resources on improving writing.

► Writing Literature Reviews

► Writing Process and Revising

► Improving Scientific Writing

• Avoiding Plagiarism – how to make sure that your research paper represents your writing and ideas and does not erroneously or unethically appropriate the works of others.

► Academic Integrity and Avoiding Plagiarism

• How-To Videos – for video guides to the different major sections of research papers, plus literature reviews and references, please see the following:

► Writing Research Papers Videos

In addition, you may be interested in downloading “ How to Write a Research Paper in APA Style ”, a comprehensive guide developed by Prof. Emma Geller, “ Tips for Writing APA Style Research Papers ” (a short summary of multiple aspects of the paper-writing process), and an Example B.S. Degree Research Paper written in APA Style .

Workshops and Downloadable Resources

• For in-person discussion of the process of writing research papers, please consider attending this department’s “Writing Research Papers” workshop (for dates and times, please check the undergraduate workshops calendar).
• How to Write APA Style Research Papers (a comprehensive guide) [ PDF ]
• Tips for Writing APA Style Research Papers (a brief summary) [ PDF ]
• Example APA Style Research Paper (for B.S. Degree – empirical research) [ PDF ]
• Example APA Style Research Paper (for B.S. Degree – literature review) [ PDF ]

Further Resources

• OASIS Language and Writing Program
• UCSD Writing Programs and Resources
• UCSD Muir College Writing Hub
• UCSD Writing Hub

External Resources

• APA Style Guide from the Purdue University Online Writing Lab (OWL)
• APA Tutorial on the Basics of APA Style
• EasyBib Guide to Writing and Citing in APA Format
• Formatting APA Style Papers in Microsoft Word
• How to Write an APA Style Research Paper from Hamilton University
• Online Learning: Plagiarism and Paraphrasing
• Sample APA Formatted Paper with Comments
• Sample APA Formatted Paper
• Tips for Writing a Paper in APA Style
• WikiHow Guide to Writing APA Research Papers

Back to top

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

Statistics in Psychological Research

• Data Collection and Analysis

Psychological Research

August 2023

Unlock the power of data with this 10-hour, comprehensive course in data analysis. This course is perfect for anyone looking to deepen their knowledge and apply statistical methods effectively in psychology or related fields.

The course begins with consideration of how researchers define and categorize variables, including the nature of various scales of measurement and how these classifications impact data analysis and interpretation. This is followed by a thorough introduction to the measures of central tendency, variability, and correlation that researchers use to describe their findings, providing an understanding of such topics as which descriptive statistics are appropriate for given research designs, the meaning of a correlation coefficient, and how graphs are used to visualize data.

The course then moves on to a conceptual treatment of foundational inferential statistics that researchers use to make predictions or inferences about a population based on a sample. The focus is on understanding the logic of these statistics, rather than on making calculations. Specifically, the course explores the logic behind null hypothesis significance testing, long a cornerstone of statistical analysis. Learn how to formulate and test hypotheses and understand the significance of p-values in determining the validity of your results. The course reviews how to select the appropriate inferential test based on your study criteria. Whether it’s t-tests, ANOVA, chi-square tests, or regression analysis, you’ll know which test to apply and when.

In keeping with growing concerns about some of the limitations of null hypothesis significance testing, such as its role in the so-called replication crisis, the course also delves into these concerns and possible ways to address them, including introductory consideration of statistical power and alternatives to hypothesis testing like estimation techniques and confidence intervals, meta-analysis, modeling, and Bayesian inference.

Learning objectives

• Explain various ways to categorize variables.
• Describe the logic of inferential statistics.
• Explain the logic of null hypothesis significance testing.
• Select the appropriate inferential test based on study criteria.
• Compare and contrast the use of statistical significance, effect size, and confidence intervals.
• Explain the importance of statistical power.
• Describe how alternative procedures address the major objections to null hypothesis significance testing.
• Explain various ways to describe data.
• Describe how graphs are used to visualize data.
• Explain the meaning of a correlation coefficient.

This program does not offer CE credit.

More in this series

Introduces the scientific research process and concepts such as the nature of variables for undergraduates, high school students, and professionals.

August 2023 On Demand Training

Introduces the importance of ethical practice in scientific research for undergraduates, high school students, and professionals.

Journal Article References

This page contains reference examples for journal articles, including the following:

• Journal article
• Journal article with an article number
• Journal article with missing information
• Retracted journal article
• Retraction notice for a journal article
• Abstract of a journal article from an abstract indexing database
• Monograph as part of a journal issue
• Online-only supplemental material to a journal article

1. Journal article

Grady, J. S., Her, M., Moreno, G., Perez, C., & Yelinek, J. (2019). Emotions in storybooks: A comparison of storybooks that represent ethnic and racial groups in the United States. Psychology of Popular Media Culture , 8 (3), 207–217. https://doi.org/10.1037/ppm0000185

• Parenthetical citation : (Grady et al., 2019)
• Narrative citation : Grady et al. (2019)
• If a journal article has a DOI, include the DOI in the reference.
• Always include the issue number for a journal article.
• If the journal article does not have a DOI and is from an academic research database, end the reference after the page range (for an explanation of why, see the database information page ). The reference in this case is the same as for a print journal article.
• Do not include database information in the reference unless the journal article comes from a database that publishes works of limited circulation or original, proprietary content, such as UpToDate .
• If the journal article does not have a DOI but does have a URL that will resolve for readers (e.g., it is from an online journal that is not part of a database), include the URL of the article at the end of the reference.

2. Journal article with an article number

Jerrentrup, A., Mueller, T., Glowalla, U., Herder, M., Henrichs, N., Neubauer, A., & Schaefer, J. R. (2018). Teaching medicine with the help of “Dr. House.” PLoS ONE , 13 (3), Article e0193972. https://doi.org/10.1371/journal.pone.0193972

• Parenthetical citation : (Jerrentrup et al., 2018)
• Narrative citation : Jerrentrup et al. (2018)
• If the journal article has an article number instead of a page range, include the word “Article” and then the article number instead of the page range.

3. Journal article with missing information

Missing volume number.

Lipscomb, A. Y. (2021, Winter). Addressing trauma in the college essay writing process. The Journal of College Admission , (249), 30–33. https://www.catholiccollegesonline.org/pdf/national_ccaa_in_the_news_-_nacac_journal_of_college_admission_winter_2021.pdf

Missing issue number

Sanchiz, M., Chevalier, A., & Amadieu, F. (2017). How do older and young adults start searching for information? Impact of age, domain knowledge and problem complexity on the different steps of information searching. Computers in Human Behavior , 72 , 67–78. https://doi.org/10.1016/j.chb.2017.02.038

Missing page or article number

Butler, J. (2017). Where access meets multimodality: The case of ASL music videos. Kairos: A Journal of Rhetoric, Technology, and Pedagogy , 21 (1). http://technorhetoric.net/21.1/topoi/butler/index.html

• Parenthetical citations : (Butler, 2017; Lipscomb, 2021; Sanchiz et al., 2017)
• Narrative citations : Butler (2017), Lipscomb (2021), and Sanchiz et al. (2017)
• If the journal does not use volume, issue, and/or article or page numbers, omit the missing element(s) from the reference.
• If the journal is published quarterly and the month or season (Fall, Winter, Spring, Summer) is noted, include that with the date element; see the Lipscomb example.
• If the volume, issue, and/or article or page numbers have simply not yet been assigned, use the format for an advance online publication (see Example 7 in the Publication Manual ) or an in-press article (see Example 8 in the Publication Manual ).

4. Retracted journal article

Joly, J. F., Stapel, D. A., & Lindenberg, S. M. (2008). Silence and table manners: When environments activate norms. Personality and Social Psychology Bulletin , 34 (8), 1047–1056. https://doi.org/10.1177/0146167208318401 (Retraction published 2012, Personality and Social Psychology Bulletin, 38 [10], 1378)

• Parenthetical citation : (Joly et al., 2008)
• Narrative citation : Joly et al. (2008)
• Use this format to cite the retracted article itself, for example, to discuss the contents of the retracted article.
• First provide publication details of the original article. Then provide information about the retraction in parentheses, including its year, journal, volume, issue, and page number(s).

5. Retraction notice for a journal article

de la Fuente, R., Bernad, A., Garcia-Castro, J., Martin, M. C., & Cigudosa, J. C. (2010). Retraction: Spontaneous human adult stem cell transformation. Cancer Research , 70 (16), 6682. https://doi.org/10.1158/0008-5472.CAN-10-2451

The Editors of the Lancet. (2010). Retraction—Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children. The Lancet , 375 (9713), 445. https://doi.org/10.1016/S0140-6736(10)60175-4

• Parenthetical citations : (de la Fuente et al., 2010; The Editors of the Lancet, 2010)
• Narrative citations : de la Fuente et al. (2010) and The Editors of the Lancet (2010)
• Use this format to cite a retraction notice rather than a retracted article, for example, to provide information on why an article was retracted.
• The author of the retraction notice may be an editor, editorial board, or some or all authors of the article. Examine the retraction notice to determine who to credit as the author.
• Reproduce the title of the retraction notice as shown on the work. Note that the title may include the words “retraction,” “retraction notice,” or “retraction note” as well as the title of the original article.

6. Abstract of a journal article from an abstract indexing database

Hare, L. R., & O'Neill, K. (2000). Effectiveness and efficiency in small academic peer groups: A case study (Accession No. 200010185) [Abstract from Sociological Abstracts]. Small Group Research , 31 (1), 24–53. https://doi.org/10.1177/104649640003100102

• Parenthetical citation : (Hare & O’Neill, 2000)
• Narrative citation : Hare and O’Neill (2000)
• Although it is preferable to cite the whole article, the abstract can be cited if that is your only available source.
• The foundation of the reference is the same as for a journal article.
• If the abstract has a database accession number, place it in parentheses after the title.
• Note that you retrieved only the abstract by putting the words “Abstract from” and then the name of the abstract indexing database in square brackets. Place this bracketed description after the title and any accession number.
• Accession numbers are sometimes referred to as unique identifiers or as publication numbers (e.g., as PubMed IDs); use the term provided by the database in your reference.

7. Monograph as part of a journal issue

Ganster, D. C., Schaubroeck, J., Sime, W. E., & Mayes, B. T. (1991). The nomological validity of the Type A personality among employed adults [Monograph]. Journal of Applied Psychology , 76 (1), 143–168. http://doi.org/10.1037/0021-9010.76.1.143

• Parenthetical citation : (Ganster et al., 1991)
• Narrative citation : Ganster et al. (1991)
• For a monograph with an issue (or whole) number, include the issue number in parentheses followed by the serial number, for example, 58 (1, Serial No. 231).
• For a monograph bound separately as a supplement to a journal, give the issue number and supplement or part number in parentheses after the volume number, for example, 80 (3, Pt. 2).

8. Online-only supplemental material to a journal article

Freeberg, T. M. (2019). From simple rules of individual proximity, complex and coordinated collective movement [Supplemental material]. Journal of Comparative Psychology , 133 (2), 141–142. https://doi.org/10.1037/com0000181

• Parenthetical citation : (Freeberg, 2019)
• Narrative citation : Freeberg (2019)
• Include the description “[Supplemental material]” in square brackets after the article title.
• If you cite both the main article and the supplemental material, provide only a reference for the article.

Journal article references are covered in the seventh edition APA Style manuals in the Publication Manual Section 10.1 and the Concise Guide Section 10.1