Stimulus-presentation methods and ability to shift dimensions in color-form preference of retardates.
D000293:Adolescent; D000328:Adult; D001288:Attention; D002648:Child; D003118:Color Perception; D003210:Concept Formation; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005556:Form Perception; D006801:Humans; D008607:Intellectual Disability; D008297:Male; D011340:Problem Solving; D014705:Verbal Behavior