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...

A new longitudinal national study of the practices and effectiveness of charter-school management organizations (CMOs) reveals a wide range of organizational models and educational strategies, with achievement effects that are more often positive than negative but vary substantially among CMOs....

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...

In the first rigorous study of the impacts of Expeditionary Learning (EL) model schools, Mathematica found that EL middle school students perform better in reading and math than their counterparts in other public schools.

A new analysis from the National Study of Charter Management (CMO) Effectiveness provides the first systematic evidence available on the effects of CMOs on the critical long-term outcomes of high school graduation and college entry. The study shows that some—but not all—CMOs...

In the first rigorous study of the impacts of Expeditionary Learning (EL) model schools, Mathematica found that EL middle school students perform better in reading and math than their counterparts in other public schools.