School Quality and the Black-White Achievement Gap

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Substantial uncertainty exists about the impact of school quality on the black-white achievement gap. Our results, based on both Texas Schools Project (TSP) administrative data and the Early Childhood Longitudinal Survey (ECLS), differ noticeably from other recent analyses of the black-white achievement gap by providing strong evidence that schools have a substantial effect on the differential. The majority of the expansion of the achievement gap with age occurs between rather than within schools, and specific school and peer factors exert a significant effect on the growth in the achievement gap. Unequal distributions of inexperienced teachers and of racial concentrations in schools can explain all of the increased achievement gap between grades 3 and 8. Moreover, non-random sample attrition for school changers and much higher rates of special education classification and grade retention for blacks appears to lead to a significant understatement of the increase in the achievement gap with age within the ECLS and other data sets.

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