Definition for American Psychological Association
From Biology Forums Dictionary
The American Psychological Association (APA) is the largest scientific and professional organization of psychologists in the United States. It is the world's largest association of psychologists with around 137,000 members including scientists, educators, clinicians, consultants and students. The APA has an annual budget of around $115m. There are 54 divisions of the APA which are interest groups, due to being subspecialties of psychology or topical areas. The American Psychological Association is occasionally confused with the American Psychiatric Association, which also uses the acronym APA.