Gaps in educational achievement between high- and low-income children are growing. Administrative data sets maintained by states and districts lack information about income but do indicate whether a student is eligible for subsidized school meals. We leverage the longitudinal structure of these data sets to develop a new measure of economic…

Six years after passage of No Child Left Behind and midway to the nation's goal of having students on grade level or better in reading and math by 2014, more data than ever before has been collected about the academic performance of American students and schools. Information in this brochure charts student demographics, achievement-to-date and…