Published Articles & Media
We conducted six formal statistical tests of the hypothesis that school choice test score impacts reliably predict future attainment impacts. Five of the tests did not support the hypothesis. We have subjected our initial findings to a variety of robustness tests, all of which they passed.
Our finding that charter school sectors in all 28 states that we study demonstrate higher productivity and/or return on investment than their traditional public school sectors has ruffled some feathers at the National School Boards Association.