title: Higher order factor structure of the WISC-IV in a clinical neuropsychological sample.
abstract: 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.
authors.affiliation: Department of Psychology, Nationwide Children's Hospital, Columbus, Ohio 43205, USA. doug.bodin@nationwidechildrens.org
authors.forename: Doug
authors.initials: D
authors.lastname: Bodin
authors.forename: Dustin A
authors.initials: DA
authors.lastname: Pardini
authors.forename: Thomas G
authors.initials: TG
authors.lastname: Burns
authors.forename: Abigail B
authors.initials: AB
authors.lastname: Stevens
mesh_terms: D000293:Adolescent; D002648:Child; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D011594:Psychometrics; D014888:Wechsler Scales