This report collects the results of all available empirical studies on how vouchers affect academic achievement in public schools. Contrary to the widespread claim that vouchers hurt public schools, it finds that the empirical evidence consistently supports the conclusion that vouchers improve public schools. No empirical study has ever found that…

The impact of Florida's "A+" accountability program, which until 2006 included a voucher program for chronically failing schools, on public school performance has been extensively studied. The results have consistently shown a positive effect on academic outcomes in Florida public schools. However, no empirical research has been done on…

Opponents of school choice argue that private schools are not "accountable" because they are not subject to detailed oversight by a regulatory bureaucracy. They claim private school employees can be expected to engage in abusive and criminal behavior more frequently. School choice supporters respond that parents hold private schools…

This study examines whether the results of standardized tests are distorted when rewards and sanctions are attached to them, making them high-stakes tests. It measures the correlation in school-level test results -- including both score levels and year-to-year score changes -- on high-stakes and low-stakes tests administered in the same schools in…

With the passage of the No Child Left Behind Act (NCLB), the proliferation of high school exit exams, the success of school choice initiatives, and a dozen other smaller if more bitter battles, education has become one of the hottest policy topics in Washington. That means there is a booming market for education experts, especially those who claim…

Many states have implemented high-stakes testing since the enactment of the No Child Left Behind Act of 2001. Yet the question remains whether high-stakes tests effectively measure student proficiency. This report describes a study that compared results on high-stakes tests with results on other standardized tests not used for accountability…