Stanford-Binet, Fourth Edition and the WISC--R for children in the lower range of intelligence

The Stanford-Binet IV and the WISC--R were administered to 30 children, ages 8 to 15 yr., whose scores were in the range of mild mental retardation. The mean interval between testings was 7 mo. The correlation was .83, with a median difference of 4 points. The WISC--R mean IQ was significantly lower than the Stanford-Binet-IV Composite mean score for the group. The disparity in scores points to the need to evaluate measures of intelligence together with other indices of functioning in decision-making for mildly retarded children.