On average, charter middle schools' impacts on student achievement were negative but not statistically significant¶

Claim · All claims
Evidence · 1 study · causal r? · q3
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Across the 33 study schools, average impacts of charter middle schools on student achievement were negative but not statistically significant. → Melissa A. Clark 2015

q3 i? Average impacts were negative and not statistically significant whether examining the offer of admission or actual attendance. → Melissa A. Clark 2015

Evidence¶

Melissa A. Clark 2015¶

Melissa A. Clark, Philip M. Gleason, Christina Clark Tuttle, Marsha K. Silverberg. (2015). Do Charter Schools Improve Student Achievement? Educational Evaluation and Policy Analysis, vol. 37, no. 4. https://www.mathematica.org/publications/do-charter-schools-improve-student-achievement doi:10.3102/0162373714558292

q3 · i? · causal · r?

Lottery-based impact study comparing test score outcomes of students admitted through randomized admissions lotteries with outcomes of applicants not admitted. The study reports that average impacts were "negative but not statistically significant" for both the offer of admission and actual attendance; no effect size is printed.

"On average across the schools in the study, the impacts of charter middle schools on student achievement were negative but not statistically significant, regardless of whether we examined the impact of the offer of admission or actual attendance at these schools."

Discussion¶

Related Claims¶

• Charter middle school impacts were more positive for more disadvantaged schools and students and more negative for the more advantaged — related
• Impacts of charter middle schools on achievement varied considerably across schools and students — related
• Oversubscribed charter middle schools differ in features from charter schools that are not oversubscribed — related
• On average, lottery-based charter middle schools are neither more nor less successful than traditional public schools in improving student achievement — possibly the same claim (merge candidate)
• Lottery-based charter middle schools show no average difference from traditional public schools in student behavior and school progress — related
• Impacts of charter middle schools on student outcomes varied widely across schools — related
• A national randomized study of the impacts of charter schools on student achievement was conducted (2003-2010), prepared for the U.S. Department of Education — related
• In the earlier National Evaluation of Charter Middle Schools, admission to about 30 charter middle schools produced no significant average effects on achievement, though some schools improved achievement — possibly the same claim (merge candidate)
• Oversubscription is prevalent among charter middle schools, enabling lottery-based evaluation — related