title: A COMPARISON OF THE PERFORMANCE OF NORMAL AND SUBNORMAL BOYS ON STRUCTURED CATEGORIZATION TASKS.
mesh_terms: D002648:Child; D006801:Humans; D008607:Intellectual Disability; D008297:Male; D011588:Psychology, Educational; D013850:Thinking; D014937:Work
keywords: CHILD; MENTAL RETARDATION; PSYCHOLOGY, EDUCATIONAL; THINKING