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. 2009 Sep;15(5):417-24.
doi: 10.1080/09297040802603661.

Higher order factor structure of the WISC-IV in a clinical neuropsychological sample

Doug Bodin  1 , Dustin A Pardini, Thomas G Burns, Abigail B Stevens
Affiliations

Higher order factor structure of the WISC-IV in a clinical neuropsychological sample

Doug Bodin et al. Child Neuropsychol. 2009 Sep.

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.

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Figures

Figure 1
Figure 1
Higher order four-factor structure of the WISC-IV in a neuropsychology clinic sample (N = 344). The four columns of values depicted in the figure represent (from right to left): unique/error variances for the WISC-IV subtests, standardized first-order factor loadings, first-order factor residual variances, and standardized second-order factor loadings.
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