APA (American Psychological Association) style is most commonly used to cite sources within the social sciences. This resource, revised according to the 6th edition, second printing of the APA manual, offers examples for the general format of APA research papers, in-text citations, endnotes/footnotes, and the reference page. For more information, please consult the Publication Manual of the American Psychological Association, (6th ed., 2nd printing).
Contributors: Joshua M. Paiz, Elizabeth Angeli, Jodi Wagner, Elena Lawrick, Kristen Moore, Michael Anderson, Lars Soderlund, Allen Brizee, Russell Keck
Last Edited: 2018-02-21 02:26:13
Please use the example at the bottom of this page to cite the Purdue OWL in APA.
To see a side-by-side comparison of the three most widely used citation styles, including a chart of all APA citation guidelines, see the Citation Style Chart.
You can also watch our APA vidcast series on the Purdue OWL YouTube Channel.
General APA Guidelines
Your essay should be typed and double-spaced on standard-sized paper (8.5" x 11"), with 1" margins on all sides. You should use a clear font that is highly readable. APA recommends using 12 pt. Times New Roman font.
Include a page header (also known as the "running head") at the top of every page. To create a page header/running head, insert page numbers flush right. Then type "TITLE OF YOUR PAPER" in the header flush left using all capital letters. The running head is a shortened version of your paper's title and cannot exceed 50 characters including spacing and punctuation.
Major Paper Sections
Your essay should include four major sections: the Title Page, Abstract, Main Body, and References.
The title page should contain the title of the paper, the author's name, and the institutional affiliation. Include the page header (described above) flush left with the page number flush right at the top of the page. Please note that on the title page, your page header/running head should look like this:
Running head: TITLE OF YOUR PAPER
Pages after the title page should have a running head that looks like this:
TITLE OF YOUR PAPER
After consulting with publication specialists at the APA, OWL staff learned that the APA 6th edition, first printing sample papers have incorrect examples of running heads on pages after the title page. This link will take you to the APA site where you can find a complete list of all the errors in the APA's 6th edition style guide.
Type your title in upper and lowercase letters centered in the upper half of the page. APA recommends that your title be no more than 12 words in length and that it should not contain abbreviations or words that serve no purpose. Your title may take up one or two lines. All text on the title page, and throughout your paper, should be double-spaced.
Beneath the title, type the author's name: first name, middle initial(s), and last name. Do not use titles (Dr.) or degrees (PhD).
Beneath the author's name, type the institutional affiliation, which should indicate the location where the author(s) conducted the research.
Image Caption: APA Title Page
Begin a new page. Your abstract page should already include the page header (described above). On the first line of the abstract page, center the word “Abstract” (no bold, formatting, italics, underlining, or quotation marks).
Beginning with the next line, write a concise summary of the key points of your research. (Do not indent.) Your abstract should contain at least your research topic, research questions, participants, methods, results, data analysis, and conclusions. You may also include possible implications of your research and future work you see connected with your findings. Your abstract should be a single paragraph, double-spaced. Your abstract should be between 150 and 250 words.
You may also want to list keywords from your paper in your abstract. To do this, indent as you would if you were starting a new paragraph, type Keywords: (italicized), and then list your keywords. Listing your keywords will help researchers find your work in databases.
Image Caption: APA Abstract Page
Please see our Sample APA Paper resource to see an example of an APA paper. You may also visit our Additional Resources page for more examples of APA papers.
How to Cite the Purdue OWL in APA
Contributors' names and the last edited date can be found in the orange boxes at the top of every page on the OWL.
Contributors' names (Last edited date). Title of resource. Retrieved from http://Web address for OWL resource
Angeli, E., Wagner, J., Lawrick, E., Moore, K., Anderson, M., Soderlund, L., & Brizee, A. (2010, May 5). General format. Retrieved from http://owl.english.purdue.edu/owl/resource/560/01/
The abstract acts as the second major section of the document and typically begins on the second page of the paper. It follows directly after the title page and precedes the main body of the paper.
The abstract is a succinct, single-paragraph summary of your paper’s purpose, main points, method, findings, and conclusions, and is often recommended to be written after the rest of your paper has been completed.
How should the abstract page be formatted?
The abstract’s length should be a minimum of 150 words and a maximum of 250 words; it should be confined within a single paragraph. Unlike in other paragraphs in the paper, the first line of the abstract should not be indented five spaces from the left margin.
Like the rest of the paper, the pages of the abstract should be double-spaced and typed in Times New Roman, 12 pt. The margins are set at 1” on all sides. While the running head is flush with the upper left-hand corner of every page, the page number is flush with the upper right-hand corner of every page. Note that all letters of the running head should be capitalized and should not exceed 50 characters, including punctuation, letters, and spaces.
The title of the abstract is centered at the top of the page; there is no extra space between the title and the paragraph. Avoid formatting the title with bold, italics, underlining, or quotation marks, or mislabeling the abstract with the title of the research paper.
When writing the abstract, note that the APA recommends using two spaces after sentences that end in a period; however, sentences that end in other punctuation marks may be followed by a single space. Additionally, the APA recommends using the active voice and past tense in the abstract, but the present tense may be used to describe conclusions and implications. Acronyms or abbreviated words should be defined in the abstract.
How should the list of keywords be formatted?
According to your professor’s directives, you may be required to include a short list of keywords to enable researchers and databases to locate your paper more effectively. The list of keywords should follow after the abstract paragraph, and the word Keywords should be italicized, indented five spaces from the left margin, and followed by a colon. There is no period at the end of the list of keywords.