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Spitz, Herman H. – American Journal of Mental Retardation, 1988
Comparison of performance of nine groups of mentally retarded subjects (N=236) on the Wechsler Intelligence Scale for Children Scale-Revised (WAIS-R) indicated the WAIS-R produced higher IQs than the WISC-R and that this disparity increased as WISC-R IQ decreased. (Author/DB)
Descriptors: Intelligence Quotient, Intelligence Tests, Mental Retardation, Test Validity