American Psychological Association

About

The American Psychological Association (APA), headquartered in Washington, D.C., is the world’s largest association of psychologists and the leading scientific and professional organization for psychology in the United States. With a membership of over 157,000 researchers, educators, clinicians, consultants, and students, APA serves 54 distinct subfields through its divisions and maintains affiliations with 60 state, territorial, and Canadian provincial associations. Its core activities span psychology, education, research, publications, and mental health, advancing the creation, communication, and application of psychological knowledge to promote human welfare. APA’s unparalleled breadth of expertise, extensive network, and commitment to translating science into practice distinguish it as a central hub for shaping policy, education, and clinical standards worldwide.