Studies in speech fluency.
D000328:Adult; D001307:Auditory Perception; D002648:Child; D003216:Conditioning, Operant; D005260:Female; D006801:Humans; D008297:Male; D011678:Punishment; D012107:Research Design; D012201:Reward; D013060:Speech; D013064:Speech Disorders / Q000628:therapy*; D013342:Stuttering / Q000628:therapy; D013637:Tape Recording