WISC-R Scatter Indexes of Children Referred for Reading Diagnosis

Abstract
A large sample of children referred to a clinic for suspected reading disabilities (N = 434) was administered the WISC-R. Their verbal-performance IQ discrepancy and indexes of subtest scatter were significantly larger than the values for the normal standardization sample, but these mean differences were not large enough to be meaningful in a practical sense. These results agree with several other investigations of the scatter indexes of exceptional samples.

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