Found subjects of varying levels of neuropsychological impairment, administered revised Wechsler Adult Intelligence Scale (WAIS-R), obtained significantly lower Full Scale, Verbal, and Performance Intelligence Quotients (IQs) than did subjects administered original, full version WAIS. Indicated significant main effects for level of impairment for all IQ measures for both scales, but no significant interactions of Scale X Level of Impairment. (Author/KS)