This report examines a decade's worth of research on school vouchers and concludes that vouchers have had no clear positive effect on student academic achievement, and mixed outcomes for students overall. Effects on graduation rates, parental satisfaction, public school achievement and cost to taxpayers are discussed. The report also notes that much of this research has been carried out or sponsored by pro-voucher organizations, signaling a particular need for scrutiny. In addition to this research review, the report describes voucher programs currently in existence, summarizes major court cases and referenda on vouchers from the past ten years, and reflects on changes in the voucher landscape. A list of voucher studies reviewed is appended. (Contains 14 footnotes.)