Reinforcement procedures for establishing and maintaining echoic speech by a nonverbal child.
D001925:Brain Damage, Chronic; D002675:Child, Preschool; D003216:Conditioning, Operant; D006801:Humans; D007100:Imitative Behavior; D008297:Male; D009043:Motor Activity; D012056:Reinforcement, Social; D012057:Reinforcement, Verbal; D012201:Reward; D013060:Speech; D013064:Speech Disorders / Q000628:therapy*