title: Outcome effects of receiving a preferred, randomly assigned, or nonpreferred therapy.
mesh_terms: D000818:Animals; D001290:Attitude; D001521:Behavior Therapy; D005069:Evaluation Studies as Topic; D006801:Humans; D010698:Phobic Disorders / Q000628:therapy*; D011613:Psychotherapy; D012681:Sensitivity Training Groups; D012911:Snakes; D013637:Tape Recording; D013690:Television