Agpa home page agpa serves as the voice of group therapy for mental health clinicians and the public at large both nationally and internationally. The benefits of psychotheraphy when people encounter the word psychotherapy they usually view it as a distinct process of treating psychological disorders. Group psychotherapy is a special form of therapy in which a small number of people meet together under the guidance of a professionally trained therapist to help . A description of various theories of and theoretical approaches to psychological treatment including psychoanalysis psychodynamic psychotherapy and cognitive