K-ABC/WISC-R Factor Analysis for a Learning Disabled Population

Alan S. Kaufman · James E. McLean

45 citations0/0 files storedJournal of Learning Disabilities

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Developmental and Educational Neuropsychology Psychological Testing and Assessment Cognitive Abilities and Testing

Abstract

A group of 198 children who were either referred for learning disabilities or diagnosed as learning disabled were tested on both the WISC-R and K-ABC. Factor analysis of the K-ABC supported the construct validity of the test for learning disabled children. Joint factor analysis of the K-ABC and WISC-R produced a three-factor and a four-factor solution that were both meaningful and clinically interesting. Factors corresponding to the three K-ABC scales generally converged with the three well known WISC-R factors. The emergence of a Reading Ability factor in the joint analysis proved to be an interesting difference between the findings for learning disabled and normal children. Canonical correlation analysis supported the results of the joint factor analysis.

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References

1988Handbook of Multivariate Experimental Psychology 1982The Handbook of School Psychology 1975Factor analysis of the WISC-R at 11 age levels between 61/2 and 161/2 years.1984Factor analysis of the Kaufman Assessment Battery for Children (K-ABC) for ages 2? through 12? years.

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2010Cattell–Horn–Carroll abilities and cognitive tests: What we've learned from 20 years of research 1999Simultaneous and Successive Cognitive Processing in Children with Nonverbal Learning Disabilities 1998Factor analyses of WISC-R and K-ABC in a Dutch sample of children referred for learning disabilities 1993Factor structure of the wisc-R in children with traumatic brain injury 1987Diagnostic utility of the K-ABC and WISC-R/PIAT in determining severe discrepancy 1988WISC-R factor structure in a referred pediatric population 1993Sequential and Simultaneous Processing in Children with Learning Disabilities 1988A Comparison of the K-ABC with the Woodcock-Johnson Tests of Academic Achievement in a Referred Population

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