In this response to the critiques by Jensen and McVicker Hunt, we focus on the meaning of g, the permanence of effects produced by early education, and the educational significance of IQ gains produced by early education programs. New longitudinal data from our study presented. (Author/RD)

Two types of information that should condition federal decisions about day care are summarized. These include data concerning the supply and demand for day care and the effects of day care on children's development. (Author)

Infants judged to be at risk for subnormal intellectual growth were randomly assigned to experimental and control groups which varied as to educational curriculum activities. Two types of evidence, group differences and parent-child IQ correlations, demonstrate the importance of early environments in intellectual development. (Author/RD)

Infants judged to be at risk for subnormal intellectual growth were randomly assigned to an experimental (N=27) or a control (N=25) group. Infants in both groups received medical care and dietary supplements; their families received social work services on a request basis. Experimental children participated in an educational day care program…

Project Head Start was created during the heady, idealistic days of the mid-1960s. The idea for Head Start, a preschool program for disadvantaged children, emerged from the observation that, on average, poor and minority children arrive at school already behind their peers in the intellectual skills and abilities required for academic achievement.…