Correspondence between effectiveness and staff use of instructions for severely retarded persons.
D000293:Adolescent; D000328:Adult; D002648:Child; D006233:Persons with Disabilities; D004495:Education of Persons with Intellectual Disabilities / Q000592:standards; D005260:Female; D006311:Hearing Disorders / Q000150:complications; D006801:Humans; D008607:Intellectual Disability / Q000150:complications; D007858:Learning; D008297:Male; D013663:Teaching / Q000379:methods*; D014705:Verbal Behavior; D014786:Vision Disorders / Q000150:complications