Higher order factor structure of the WISC-IV in a clinical neuropsychological sample.
A confirmatory factor analysis was conducted examining the higher order factor structure of the WISC-IV scores for 344 children who participated in neuropsychological evaluations at a large children's hospital. The WISC-IV factor structure mirrored that of the standardization sample. The second order general intelligence factor (g) accounted for the largest proportion of variance in the first-order latent factors and in the individual subtests, especially for the working memory index. The first-order processing speed factor exhibited the most unique variance beyond the influence of g. The results suggest that clinicians should not ignore the contribution of g when interpreting the first-order factors.
Bodin
Doug
D
Department of Psychology, Nationwide Children's Hospital, Columbus, Ohio 43205, USA. doug.bodin@nationwidechildrens.org
Pardini
Dustin A
DA
Burns
Thomas G
TG
Stevens
Abigail B
AB
D000293:Adolescent; D002648:Child; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D011594:Psychometrics; D014888:Wechsler Scales