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.

This report shows that Knowledge Is Power Program (KIPP) middle schools have significant and substantial positive impacts on student achievement in four core academic subjects: reading, math, science, and social studies. One of the report’s analyses confirms the positive impacts using a...

The Knowledge Is Power Program (KIPP) is a network of charter schools designed to improve the educational opportunities available to low-income families. KIPP schools seek to boost their students’ academic achievement and ultimately prepare them to enroll and succeed in college.

This report presents the first findings from a multi-year evaluation of the Knowledge Is Power Program (KIPP), a network of charter schools for disadvantaged students. Using a matched comparison group design, results show that for the vast majority of KIPP schools in the evaluation, impacts on...

This paper looks at findings from the first national randomized study of the impacts of charter schools on student achievement.

This PowerPoint presentation was made at the American Educational Research Association Annual Meeting.

This report provides findings from the largest charter school study of its kind to date to use an experimental design. On average, charter middle schools that hold lotteries are neither more nor less successful than traditional public schools in improving student achievement, behavior, and...

This article draws on data and experiences observing and analyzing school lotteries from the National Evaluation of Charter School Impacts to describe challenges associated with lottery-based research. It presents evidence on the prevalence of oversubscribed charter middle schools and compares...