Digit span, practice and dichotic listening performance in the mentally retarded.
D000293:Adolescent; D000704:Analysis of Variance; D001288:Attention; D001307:Auditory Perception; D002648:Child; D002657:Child Development; D006801:Humans; D008607:Intellectual Disability; D007858:Learning; D008570:Memory, Short-Term; D011581:Psychological Tests