Although there is an abundance of research on the association of school poverty (or socioeconomic status) and test score level, there is very little rigorous longitudinal evidence on the cumulative effects of exposure to differing school contexts. Drawing from methods used first in epidemiology and then in neighborhood effects research, we use…

Schools use an array of strategies to match curricula and instruction to students' heterogeneous skills. Although generations of scholars have debated ''tracking'' and its consequences, the literature fails to account for diversity of school-level sorting practices. In this article, we draw on the work of Sørensen and others to articulate and…

How do proficiency-based accountability systems affect inequality in academic achievement? This article reconciles mixed findings in the literature by demonstrating that three factors jointly determine accountability's impact. First, by analyzing student-level data from a large urban school district, we find that when educators face accountability…