The American Group Psychotherapy Association (AGPA) originated from the efforts of which individual in the 1940s?

• A. Raymond Corsini.
• B. Samuel Richard Slavson.
• C. Jacob Moreno.
• D. Frank Parsons.

Answer: (B)

Samuel Richard Slavson is the figure most closely associated with starting AGPA in the 1940s. He was a driving force in shaping group psychotherapy as a professional field, bringing clinicians together, developing training and standards, and organizing efforts that culminated in the formation of a national organization for group work. That leadership in creating a formal community for practitioners is why he is the best answer.

The other individuals are important in related areas but did not originate AGPA in that era: Jacob Moreno is known for developing psychodrama and sociometry; Frank Parsons laid early groundwork in vocational guidance; Raymond Corsini made substantial contributions to psychotherapy, but not the founding of AGPA.