Cognitive and motivational factors in concept switching among the retarded.
D000293:Adolescent; D000328:Adult; D002674:Child, Institutionalized; D003071:Cognition; D003118:Color Perception; D003210:Concept Formation; D005260:Female; D005556:Form Perception; D006760:Hospitalization; D006801:Humans; D008607:Intellectual Disability; D008297:Male; D009042:Motivation; D011678:Punishment; D012934:Social Isolation; D013997:Time Factors; D014163:Transfer, Psychology