Compared Kaufman Assessment Battery for Children (K-ABC) with Wechsler Intelligence Scale for Children-Revised (WISC-R) and Peabody Individual Achievement Test (PIAT) to determine K-ABC's utility in determination of a severe discrepancy for learning disabilities classification. Found that K-ABC and WISC-R/PIAT approaches to the determination of a score differential resulted in identification of different populations of students. (Author/ABL)