Through an analysis of relevant social science evidence, this article provides a deeper understanding of critical mass, a concept that has become central in litigation efforts related to affirmative action admissions policies that seek to further the educational benefits of diversity. We demonstrate that the concept of critical mass requires an…

Pursuant to Supreme Court Rule 37, the American Educational Research Association (AERA) et al. submit this brief as "amici curiae" in support of Respondents. "Amici curiae" comprise several of the nation's leading research associations: the American Educational Research Association, the American Association for the Advancement…

The gap between Blacks and Whites in educational outcomes has narrowed dramatically over the past 60 years, but progress stopped around 1990. The author reviews research suggesting that increasing the quantity and quality of schooling can play a powerful role in overcoming racial inequality. To achieve that goal, he reasons, our knowledge of best…