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 …