This study reports the findings from a year-long randomized evaluation assessing the impact of assigning 62 classrooms in Nigeria to receive either blocked or interleaved math problem sets. Blocked practice sessions focused on a single skill at a time. Interleaved problem sets alternated between different skills within a practice session. On tests…

Private school choice options are being proposed and adopted in numerous states across the country. As of the spring of 2019, 62 private school choice programs were in operation in 29 states and the District of Columbia, serving more than 400,000 children. Although growth in private school choice programs and enrollment has been considerable over…

In the past few years, four states have established programs that provide public financial support to students who choose to attend a private school. These programs--a tax-credit-funded scholarship initiative in Florida and voucher programs in Indiana, Louisiana, and Ohio--offer a glimpse of what expansive statewide choice might look like. What…

Recent research on statewide voucher programs in Louisiana and Indiana has found that public school students that received vouchers to attend private schools subsequently scored lower on reading and math tests compared to similar students that remained in public schools. The magnitudes of the negative impacts were large. A case to use taxpayer…

Effective faculty professional development programs in independent schools can lead to a collegial, intellectually stimulating school culture. These programs can inspire exciting partnerships. Importantly, there's a "trickle down effect"; energized faculty lead to energized students. Yet, many independent schools lack faculty…