The study examined the effect of being offered enrollment at a charter middle school on student achievement and behaviors.
On average, students admitted to charter middle schools through the lottery scored no differently on math and reading assessments than students not offered admission. These program impacts varied widely across study sites; some had positive outcomes and some had negative outcomes.
Gleason, P., Clark, M., Tuttle, C. C., & Dwoyer, E. (2010). The evaluation of charter school impacts: Final report (NCEE 2010-4029). Washington, DC: National Center for Educational Evaluation and Regional Assistance, Institute of Education Sciences, U.S. Department of Education.