Prediction from the Cattell infant intelligence scale.

Abstract

In a study comparing the predictive value of the Cattell Infant Intelligence Scale (CIIS) with the Revised Stanford-Binet (Form L) "an analysis of variance disclosed no differences among the mean scores obtained from the Cattell at 12, 18, and 24 months, nor among the SB mean scores at 36, 48, and 60 months. However, the differences in the scores at 6 months when compared with the scores at 12, 18, and 24 months were significant." One result of the analyses showed that the "CIIS at the age of 6 months was a poor predictive index of intelligence. This supports the findings of other investigators who used different psychometric instruments and emphasizes the limitations involved in using the results of the 6-month test on an individual basis.".