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…

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…