psychological association American Psychological Association http://isni.org/isni/0000000121667523 https://en.wikipedia.org/wiki/American_Psychological_Association https://en.wikipedia.org/wiki/Category:American_Psychological_Association https://viaf.org/viaf/153428680 https://www.wikidata.org/wiki/Q466587 APA The largest scientific and professional organization of psychologists in the United States, with over 121,000 members, including scientists, educators, clinicians, consultants, and students. It has 54 divisions—interest groups for different subspecialties of psychology or topical areas. Trans abbreviations/terms/slang American Psychiatric Association