title: The relationship between intellectual ability and adult performance on the Trail Making Test and the Symbol Digit Modalities Test.
abstract: Subjects between the ages of 18 and 30 were divided in groups based on their Satz-Mogel Wechsler Adult Intelligence Scale-Revised Full Scale IQs: (a) Borderline (70 to 79); (b) Low Average (80 to 89); (c) Average (90 to 109); (d) High Average (110 to 119); (e) Superior (120 to 129). Each subject was administered the Trail Making Test (Forms A and B) and the written version of the Symbol Digit Modalities Test. A significant effect for IQ emerged. The low ability subjects were, in the main, significantly different from the higher ability subjects. No gender differences were found.
authors.affiliation: Department of Psychology, University of Southern Mississippi, Hattiesburg 39406-8236.
authors.forename: B W
authors.initials: BW
authors.lastname: Waldmann
authors.forename: A L
authors.initials: AL
authors.lastname: Dickson
authors.forename: M C
authors.initials: MC
authors.lastname: Monahan
authors.forename: R
authors.initials: R
authors.lastname: Kazelskis
mesh_terms: D000328:Adult; D001076:Aptitude; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D011594:Psychometrics; D012016:Reference Values; D014888:Wechsler Scales / Q000706:statistics & numerical data