environments across the two areas, we find remarkably consistent results: in families with two or more children, second-born boys … the evidence rules out differences in health at birth and the quality of schools chosen for children. We do find that …

students. However, very little empirical work has to date been completed on this topic. This paper provides the first empirical … every third, fourth, and fifth grader in a large school district over four years, we match students' test score gains and … substantial evidence that higher grading standards benefit students. We find that these effects are not uniform: High …

better than third generation immigrants. Among first generation immigrants, the earlier the arrival, the better the students … tend to perform. These patterns of findings hold for both Asian and Hispanic students, and suggest a general pattern of …

special-need students, groups that charter critics have argued are typically under-served. The results show overall gains of 0 ….35 standard deviations in math and 0.12 standard deviations in reading for each year spent at KIPP Lynn. LEP students, special … education students, and those with low baseline scores benefit more from time spent at KIPP than do other students, with reading …

submitted by teachers. We compared the performance of classrooms of elementary students in Los Angeles randomly assigned to … teacher impacts on student achievement. We found that students randomly assigned to highly-rated applicants performed better … than students assigned to comparison teachers, while students assigned to poorly-rated applicants performed worse …