AbstractThe purpose of the present study was to determine if the McCarthy Scales of Children's Abilities could be utilized as a predictor of achievement over a six‐year period. Twenty‐four kindergarten children were tested with the McCarthy Scales and subsequently examined with the Comprehensive Testing Program achievement tests in sixth grade. A correlational analysis of the data resulted in significant relationships between the McCarthy General Cognitive Index, Quantitative Scale, and Memory Scale and both the CTP and course grades. The McCarthy Perceptual‐Performance Scale showed significant correlations with the CTP but not with course grades; the Verbal Scale was not predictive of academic achievement. The significance of these findings is disc