title: Verbal conditioning with retarded subjects: experimental control of vocal duration in dyadic assemblies.
mesh_terms: D000293:Adolescent; D002648:Child; D003216:Conditioning, Operant; D004495:Education of Persons with Intellectual Disabilities; D005246:Feedback; D005260:Female; D006801:Humans; D008607:Intellectual Disability; D010379:Peer Group; D011336:Probability; D012056:Reinforcement, Social; D012201:Reward; D013060:Speech; D013997:Time Factors; D014705:Verbal Behavior