This report is part of a comprehensive study of the cognitive, personal, and social development of disadvantaged children over the crucial period age three through grade three. The aims of the study are to identify the components of early education associated with children's development, to determine the environmental and background factors…

Some characteristics of children, their families, the programs they attended, and the relationship of these experiences to their development are covered in this national report on the immediate changes associated with participation in full year Head Start programs. Major emphasis was placed on the child's cognitive and social development in the…