title: Operant conditioning of speech and language in the nonverbal retarded child. Recent advances.
mesh_terms: D000124:Achievement; D002653:Child Behavior Disorders / Q000175:diagnosis; D002675:Child, Preschool; D003071:Cognition; D003216:Conditioning, Operant; D003479:Curriculum; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000628:therapy*; D007360:Intelligence; D007361:Intelligence Tests; D007806:Language Disorders / Q000175:diagnosis / Q000628:therapy*; D012017:Referral and Consultation; D013064:Speech Disorders / Q000175:diagnosis / Q000628:therapy*; D013997:Time Factors