Ma. Lyon, A COMPARISON BETWEEN WISC-III AND WISC-R SCORES FOR LEARNING-DISABILITIES REEVALUATIONS, Journal of learning disabilities, 28(4), 1995, pp. 253-255
This study examined differences between Wechsler Intelligence Scale fo
r Children-Third Edition (WISC-III) and Wechsler intelligence Scale fo
r Children-Revised (WISC-R) scores for 40 students with learning disab
ilities (LD) at the time of their triennial reevaluations. WISC-III Fu
ll Scale, Verbal, and Performance IQs were significantly lower than co
mparable WISC-R IQs by approximately one-third to one-half of a standa
rd deviation. Correlations among the IQ scores were moderate to modera
tely strong. Implications of these findings for LD reevaluations are d
iscussed.