This paper uses individual student-level data from Ohio–which permits a wide range of organizations to authorize charter schools—to examine the relationship between type of authorizer and charter-school effectiveness, as measured by students’ achievement trajectories.

This report describes The Equity Project (TEP) charter school’s instructional and personnel strategies, examines the characteristics and attrition rates of TEP students, and measures TEP’s impacts on student achievement during the school’s first four years of operation.

This article measures the achievement impacts of 41 Knowledge Is Power Program (KIPP) charter middle schools nationwide and found consistently positive and statistically significant test-score effects in reading, math, science, and social studies.

This working paper discusses a new analysis, using data from Florida and Chicago, suggesting that charter high schools are not only increasing postsecondary educational attainment but may also boost students' long-run earnings.

Provides comprehensive evidence on the effects of KIPP middle schools across the country.