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Peer reviewedGoldstein, Donald J.; Sheaffer, Christopher I. – American Journal of Mental Retardation, 1988
Ratio developmental quotients from Bayley Scales administered after age 30 months were compared to Stanford Binet IQs secured later for 42 mentally retarded children. Means were almost identical suggesting use of Bayley ratio quotients with children too old for the Bayley norms and too retarded for the Stanford Binet. (Author/DB)
Descriptors: Cognitive Measurement, Intelligence Tests, Mental Retardation, Test Validity
