research one person in the history of psychology with whom you were not previously familiar

Most people are familiar with Sigmund Freud, the founder of psychoanalytic theory, but many other theorists have made significant contributions to the growing field of psychology. For this assignment, research one person in the history of psychology with whom you were not previously familiar. write about this person. Include their contributions to the field of psychology. Provide at least one reference as a source of your information.

APA format

must be 500 words