Purdue's website offers a comprehensive list of standard abbreviations. We check every paper for plagiarism before sending it you.Note that if two different groups would abbreviate to the same form (e.g., both the American Psychological Association and the American Psychiatric Association abbreviate to APA), you cannot use the abbreviation in your paper—instead you must spell out the term every time to avoid ambiguity.An exception to abbreviations in the reference list is when works have been published using abbreviations as part of the author, title, or source.by Chelsea Lee This post will address how to use abbreviations in APA Style—specifically, how to use acronyms, which are abbreviations made up of the first letters of each word in a phrase. You can find abbreviations discussed in the The first time you use an abbreviation in the text, present both the spelled-out version and the short form.When the spelled-out version first appears in the narrative of the sentence, put the abbreviation in parentheses after it: If your reference has a group author, the name of the group can sometimes be abbreviated—for example, American Psychological Association can be abbreviated to APA.
However, if the abbreviation would help the reader recognize a term or find your article via search, then it is permissible to include an abbreviation in the abstract, even if it is not used three times.
If you do use an abbreviation in a running head, you can use it straightaway without definition.
Instead, define the abbreviation the first time you use it in the text.
Retain these abbreviations because the reader will need them to retrieve the source (you also do not need to define them—just present them as-is).
See more about this in our post on cite what you see.