title: Verbal conditioning of middle and lower socioeconomic class schizophrenics.
mesh_terms: D001521:Behavior Therapy; D003142:Communication; D003216:Conditioning, Operant; D004309:Double Bind Interaction; D006801:Humans; D008297:Male; D012056:Reinforcement, Social; D012559:Schizophrenia / Q000209:etiology; D012565:Schizophrenic Psychology; D012923:Social Class; D014705:Verbal Behavior; D014831:Voice