Kenneth Bancroft Clark and Mamie Phipps Clark were American psychologists who as a married team conducted research among children and were active in the Civil Rights Movement. They founded the Northside Center for Child Development in Harlem and the organization Harlem Youth Opportunities Unlimited (HARYOU). Kenneth Clark was also an educator and professor at City College of New York, and first Black president of the American Psychological Association.

The American Psychological Association (APA) is the main professional organization of psychologists in the United States, and the largest psychological association in the world. It has over 157,000 members, including scientists, educators, clinicians, consultants, and students. It has 54 divisions, which function as interest groups for different subspecialties of psychology or topical areas. The APA has an annual budget of around $125 million.