Recent federal initiatives in education, such as Race to the Top, the Teacher Incentive Fund, and the flexibility policy for the Elementary and Secondary Education Act are designed in part to ensure that disadvantaged students have equal access to effective teaching. The initiatives respond to...

This study explores the disparity in access to effective teachers in 29 school districts across the country, revealing that disadvantaged students receive poorer-quality instruction, on average, compared with other students. Mathematica conducted the studies for the Institute of Education Sciences.

This study explores the disparity in access to effective teachers in 29 school districts across the country, revealing that disadvantaged students receive poorer-quality instruction, on average, compared with other students. Mathematica conducted the studies for the Institute of Education Sciences.

Examines children's diets and finds nearly all children have adequate usual intakes for most B vitamins, but many children of all ages are at risk of inadequate intakes of folate, magnesium, zinc, and vitamins A and E. In addition, a large proportion of children have calcium intakes well below...

Summarizes the largest federal study ever conducted of dropout prevention programs, finding three promising models: alternative middle and high schools for those at risk of dropping out, programs aimed at helping older students earn a GED, and whole-school restructuring efforts aimed at dropout...

Using longitudinal, student-level data, this working paper examines the entry and exit of students in KIPP middle schools, comparing KIPP’s rates of attrition and replacement with rates in nearby district-run schools.

Nonexperimental methods, such as regression modeling or statistical matching, produce unbiased estimates if the underlying assumptions hold, but these assumptions are usually not testable. Most studies testing nonexperimental designs find that they fail to produce unbiased estimates, but these...