title: Validation of WAIS-III four-subtest short forms in patients with traumatic brain injury.
abstract: In an effort to identify four-subtest Wechsler Adult Intelligence Scale-Third Edition (WAIS-III) short forms valid for estimating Full-Scale IQ (FSIQ) among individuals with traumatic brain injury (TBI), seven tetrad versions of the WAIS-III were evaluated in a convenience sample of patients referred for neuropsychological assessment (n = 176). Estimated FSIQ scores were compared to actual FSIQ scores via correlation analyses, repeated-measures analyses of variance (ANOVAs), and frequency analyses. All short form-estimated FSIQ scores correlated highly with actual scores (all rs > .91, ps < .001). Repeated-measures ANOVAs identified no significant differences between actual and short form-estimated FSIQ scores for two of the seven short forms. These same two short forms had the highest percentage of scores within ±5 points of actual FSIQ scores (75.6% and 71.6%). Thus, two tetrad versions were consistently superior to others in accuracy of estimating FSIQ; these may be helpful when time constraints or other issues necessitate use of an abbreviated battery for estimating FSIQ among individuals with TBI.
authors.affiliation: Department of Health Psychology, University of Missouri, Columbia, USA. ReidArndtS@health.missouri.edu
authors.forename: Stephanie A
authors.initials: SA
authors.lastname: Reid-Arndt
authors.forename: Brittany J
authors.initials: BJ
authors.lastname: Allen
authors.forename: Laura
authors.initials: L
authors.lastname: Schopp
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001930:Brain Injuries / Q000175:diagnosis* / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D014888:Wechsler Scales / Q000706:statistics & numerical data*