Obtained Wherry hierarchical factor solution on Wechsler Adult Intelligence Scale-Revised subtests intercorrelations for 108 alcoholic adults. Found ability arrangement consistent with Vernon's structure-of-intellect model. Ability hierarchy consisted of strong general intelligence factor defined by all 11 subtests, which accounted for 49% of variance. Primary level of ability hierarchy consisted on spatial-perceptual-mechanical, Freedom from Distractibility, and Verbal Comprehension factors. (Author/NB)