Demands for scientific knowledge of what works in educational policy and practice has driven interest in quantitative investigations of educational outcomes, and randomized controlled trials (RCTs) have proliferated under these conditions. In educational settings, even when individuals are randomized, both experimental and control students are…

The study examined whether providing summer reading books to economically disadvantaged first- and second-grade students for three consecutive summers improved reading achievement. The study analyzed data on about 1,300 students from 17 high-poverty elementary schools in two large districts in Florida. Student-level reading achievement was…

This study examined whether "Children's Defense Fund (CDF) Freedom Schools"[R] improve students' reading assessment scores. The study reported higher gains in reading assessment scores for students who participated in the "CDF Freedom Schools"[R] program than for students who did not participate, evaluating more than 3,000…