Faculty Collaboration Database

WAIS-IV GAI and CPI discrepancies in multiple sclerosis and traumatic brain injury. Appl Neuropsychol Adult 2018;25(1):51-56

Date

10/26/2016

Pubmed ID

27779426

DOI

10.1080/23279095.2016.1241786

Scopus ID

2-s2.0-84992398825 (requires institutional sign-in at Scopus site)   5 Citations

Abstract

We examined relationships between the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) General Ability Index (GAI) and Cognitive Proficiency Index (CPI) in two clinical samples. The mean pattern produced by 42 individuals with multiple sclerosis (MS) and 47 with traumatic brain injury (TBI) was the same, GAI > CPI. This pattern occurred in 61.9% and 78.7% of the protocols of patients with MS or TBI, respectively. The MS sample earned a significantly larger CPI mean than did patients with TBI. The group means did not differ on the GAI. Patients with TBI had significantly larger GAI-CPI discrepancy score means than those with MS. Receiver operating characteristics (ROC) analysis assessed the ability of GAI-CPI discrepancies to differentiate the samples. The area under curve (AUC) was 0.67, 95% [0.55, 0.78], which indicated low accuracy in terms of group classification.

Author List

J Ryan J, Kreiner DS, Glass Umfleet L, Gontkovsky ST, Myers-Fabian A

Author

Laura Umfleet PsyD Associate Professor in the Neurology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adolescent
Adult
Brain Injuries, Traumatic
Female
Humans
Intelligence
Male
Middle Aged
Multiple Sclerosis
Neuropsychological Tests
Psychometrics
Reproducibility of Results
Wechsler Scales
Young Adult