Prorating WAIS - IV summary scores for patients with relapsing-remitting multiple sclerosis. Int J Neurosci 2016 Nov;126(11):1025-9
Date
10/01/2015Pubmed ID
26422128DOI
10.3109/00207454.2015.1101596Scopus ID
2-s2.0-84945144214 (requires institutional sign-in at Scopus site) 1 CitationAbstract
We evaluated the utility of prorating appropriate combinations of two, six and eight Wechsler Adult Intelligence Scale - Fourth Edition (WAIS - IV) subtests for estimating the Verbal Comprehension Index (VCI), Perceptual Reasoning Index (PRI), Full Scale IQ (FSIQ) and General Ability Index (GAI) in a sample of individuals diagnosed with multiple sclerosis (MS). Forty-eight outpatients completed the WAIS - IV and Wechsler Memory Scale - Fourth Edition (WMS - IV) as part of a comprehensive neuropsychological battery. Means for age, education and duration of diagnosis were 42.35, 14.21 and 8.30 years, respectively. Paired t-tests showed no significant differences between prorated and standard means for VCI (93.46 vs. 93.73), PRI (90.19 vs. 89.44), FSIQ (88.53 vs. 88.47) or GAI (90.56 vs. 90.65). Correlations between prorated and standard composites were ≥0.89 in every instance. Correlations between the standard and prorated composites and education, disability status and WMS - IV indexes did not reveal a single contrast, where the correlations were significantly different. The present findings support the use of the two-subtest VCI and PRI composites and the eight-subtest FSIQ and four-subtest GAI in the assessment of patients with MS.
Author List
Ryan JJ, Umfleet LG, Gontkovsky STAuthor
Laura Umfleet PsyD Associate Professor in the Neurology department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdultCognitive Dysfunction
Female
Humans
Male
Middle Aged
Multiple Sclerosis, Relapsing-Remitting
Psychometrics
Wechsler Scales
