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Factor Structure of the Woodcock-Johnson Cognitive Subtests from Preschool to Adulthood

University of Alabama

Marcia R. O'Neal

University of Alabama

The Woodcock-Johnson Cognitive Battery was factor analyzed from the preschool ages through adulthood to extend the work of McGrew, who studied a variety of solutions for grades 1 through 12. Using data from the Woodcock-Johnson stanardization sample, results of empirical and subjective criteria indicated that there is only one meaningful factor at the preschool ages, but that there are three significant factors from grades 1 through 12 and ages 20-65 +: Verbal Ability, Perceptual Speed, and Reasoning. Loadings on the general (g) factor tended to increase through adulthood. Some developmental trends emerged, and clinical implications of the findings are stressed.

Journal of Psychoeducational Assessment, Vol. 6, No. 1, 35-48 (1988)
DOI: 10.1177/073428298800600104


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