Use of a frustration technique to reinstate speech in nonverbal retarded.
D000293:Adolescent; D000328:Adult; D004495:Education of Persons with Intellectual Disabilities; D005639:Frustration; D006801:Humans; D007806:Language Disorders / Q000628:therapy*; D008297:Male; D008722:Methods; D012201:Reward; D013060:Speech; D014705:Verbal Behavior