School Quality and the Longer-Term Effects of Head Start
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Recent research on Head Start, an enriched preschool program for poor children that effects on test scores fade out' more quickly for black children than for white children. This" paper uses data from the 1988 wave of the National Educational Longitudinal Survey to show that" black children who
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美国国家经济研究局创建时间：
1998-01-01
