Previous studies of the connection between school enrollment size and student achievement use cross-sectional econometric models and thus do not account for unobserved heterogeneity across schools. To address this concern, I utilize school-level panel data, and generate first-differences estimates of the effect of school size on achievement.…

Growing concern about the quality of public education in the United States has driven numerous educational reform efforts across the last three decades. These reforms include increased accountability as exemplified by various requirements of the federal No Child Left Behind Act, the introduction of new curriculum and instructional methods in…