Estimates confluence model of intellectual development for a within-family sample of 321 children from 101 transracial adoptive families. Mental ages of children and their parents and birth or adoption intervals were used in a nonlinear least-squares estimation procedure to obtain children's predicted mental ages. Results suggest efficiency of the…

In this study, the relationship between a refined measure of the learning environment of the home and the levels and profiles of a set of mental ability scores of children from five Canadian ethnic groups was examined. Significant group differences persisted in the verbal, number, and reasoning scores. (Author/JMB)

This paper is a general discussion of parents-as-teachers. This topic is approached from the standpoint of natural observation studies and laboratory studies. The natural field observations have been made in homes and in other settings, in which the main analytic technique was correlation. Numerous investigators have examined relationships between…

Studied the relationship of family background and child care quality to preschoolers' cognitive, language, and social development. Concluded that family background variables were significant predictors of children's cognitive and language development, and that child care quality variables significantly predicted social adjustment and were a…

The hypothesis that the Scholastic Aptitude Test (SAT) score decline is a result of changing American family sizes and configurations is explored. This possible explanation of declining SAT scores had been offered by Robert B. Zajonc in an article discussing the relation between family configuration and cognitive development. Since a number of…