As part of a longitudinal study of the New York State Experimental Prekindergarten Program (PreK), several measures were administered to the four-year-old children in the fall of 1975 and to a sample of the same children in the spring of 1976. Analyses of covariance were carried out on three measures of cognitive development with one of five…

Approximately 6,500 children are enrolled per year in the New York State Experimental Prekindergarten Program (PreK). In 1975-76 a longitudinal study was begun to determine the program's impact on the development of children while enrolled in the program and in the primary grades. Samples from a population of 5,245 four-year-old prekindergarten…

The second of two reports on a national evaluation of the immediate effects of Project Head Start describes the characteristics of children, families and programs in samples of full-year classes operating in 1966-67 and 1967-68. No control groups were used; comparisons were made within the Head Start sample to see what kinds of classroom…

The first of two reports of a national evaluation of the immediate effects of Project Head Start describes the characteristics of children, families and programs in samples of full-year classes operating in 1968-69. The study identifies changes associated with Head Start participation and the conditions under which these changes were greatest. No…