Data on the concurrent validity of the McCarthy Scales, using two Wechsler Scales for Children as criteria, were compared with those of previous studies. Significant moderate to strong correlations at preschool and school-age levels between the General Cognitive Index of the McCarthy and Wechsler IQ's were noted. (Author/RD)

The primary purpose of this study was to compare the effectiveness of infant test scores, Home Observation for Measurement of the Environment (HOME) scores, socioeconomic factors and maternal IQ as predictors of children's mental test performance. Additional purposes were to (1) determine the extent to which socioeconomic factors and maternal…

This study reports the contribution of maternal general ability, some developmental milestones, early motor development, language development, and experiences, to intelligence as measured at age 5. Results confirm that there is a relatively low level of prediction of intelligence. (Author/KC)

Two methodological issues involved in determining the relationship between learning and general intelligence were examined: (1) the use of learning strategies in a paired-associate task and (2) the importance of time (rather than errors) in the measurement of learning efficiency. (Author/RD)

Stochastic difference equations of the Box-Jenkins form provide an adequate family of models on which to base the stochastic theory of human growth processes, but conventional time series identification methods do not apply to available data sets. A method to identify structure and parameters of stochastic difference equation models of human…

Although the Intellectual Development (ID) index was constructed using standard psychometric procedures, the derivation of the other two indexes, Socio Intellectual Status (SIS) and Differential Intellectual Development (DID), by criterion scaling should have applications in diverse areas of scale or index construction. The ID is basically…