title: MA intellectual assessment by operant conditioning of Down's syndrome children.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003216:Conditioning, Operant; D004193:Discrimination Learning; D004314:Down Syndrome / Q000175:diagnosis*; D004495:Education of Persons with Intellectual Disabilities; D006801:Humans; D007361:Intelligence Tests; D012055:Reinforcement Schedule; D012201:Reward