This study investigated the relation of the Kaufman Assessment Battery for Children (K-ABC) with the Wechsler Intelligence Scale for Children - Revised (WISC-R) for learning disabled (LD) children, the relation of K-ABC Achievement subtests with other achievement tests, and the relation of verbal and perceptual abilities assessment and the K-ABC. One hundred white, middle to above socioeconomic status (SES), LD students 6 to 12 1/2 years old were administered the K-ABC in addition to the test battery used to identify them. Findings indicated significant differences (2<-01) between WISC-R Full Scale scores and KABC MPC scores, with MPC scores being 3.33 points lower. Significant correlations (2<-01) were found between the following: (a) WISC-R Performance scores and K-ABC Simultaneous scores, (b) K-ABC Sequential and Simultaneous scores, (c) WISC-R Performance and K-ABC Sequential scores, (d) K-ABC Arithmetic and WRAT Arithmetic, and (e) K-ABC Reading Understanding and the following: Woodcock Word Identification, Woodcock Passage Comprehension, WRAT Reading, and Durrell Silent Reading. The study found the MPC correlates higher with tests of perceptual ability than with tests of verbal ability. Results indicate the following: (a) the WISC-R and K-ABC can substitute each other when measuring overall intelligence, (b) the WISC-R and K-ABC do not measure the same abilities, (c) the Sequential-Simultaneous score discrepancy is a poor diagnostic indicator of LD, (d) the discrepancy between the Achievement scale and the K-ABC intelligence scales is a poor diagnostic indicator of LD, (e) the K-ABC Arithmetic subtest is no better and no worse than the WRAT Arithmetic subtest, (f) WRAT Reading, Woodcock Word Identification and K-ABC Reading Recognition are not interchangeable measures of word calling skills, (g) the K-ABC Reading Understanding subtest is as adequate a measure of reading comprehension as other available tests, (h) the MPC is clearly more a measure of perceptual ability than of verbal ability, and (i) the KABC is no more fair a measure to use with LD children than are intelligence tests with a heavy language component.
