%0 Journal Article
%T An examination of the Wechsler Adult Intelligence Scales, Fourth Edition (WAIS-IV) in individuals with complicated mild, moderate and severe traumatic brain injury
%J Clinical neuropsychologist, The
%D 2015
%A Carlozzi, Noelle E.
%A Kirsch, Ned L.
%A Kisala, Pamela A.
%A Tulsky, David S.
%V 29
%N 1
%P 21-37
%X This study examined the clinical utility of the Wechsler Adult Intelligence Scales-Fourth Edition (WAIS-IV) in individuals with complicated mild, moderate or severe TBI. One hundred individuals with TBI (n = 35 complicated mild or moderate TBI; n = 65 severe TBI) and 100 control participants matched on key demographic variables from the WAIS-IV normative dataset completed the WAIS-IV. Univariate analyses indicated that participants with severe TBI had poorer performance than matched controls on all index scores and subtests (except Matrix Reasoning). Individuals with complicated mild/moderate TBI performed more poorly than controls on the Working Memory Index (WMI), Processing Speed Index (PSI), and Full Scale IQ (FSIQ), and on four subtests: the two processing speed subtests (SS, CD), two working memory subtests (AR, LN), and a perceptual reasoning subtest (BD). Participants with severe TBI had significantly lower scores than the complicated mild/moderate TBI on PSI, and on three subtests: the two processing speed subtests (SS and CD), and the new visual puzzles test. Effect sizes for index and subtest scores were generally small-to-moderate for the group with complicated mild/moderate and moderate-to-large for the group with severe TBI. PSI also showed good sensitivity and specificity for classifying individuals with severe TBI versus controls. <br><br>FINDINGS provide support for the clinical utility of the WAIS-IV in individuals with complicated mild, moderate, and severe TBI.<p /> <p>Language: en</p>
%G en
%I Informa - Taylor and Francis Group
%@ 1385-4046
%U http://dx.doi.org/10.1080/13854046.2015.1005677