This report presents findings from a nonexperimental analysis estimating the effect on student achievement of a small number of New York City charter middle schools affiliated with two charter management organizations, Achievement First and Uncommon. After three years, impacts are statistically...

This report presents findings from a nonexperimental analysis estimating the effect on student achievement of a small number of New York City charter middle schools affiliated with two charter management organizations, Achievement First and Uncommon. After three years, impacts are statistically...