This publication summarizes an academic review paper on preschool effectiveness, "Lottery Evidence on the Impact of Preschool in the United States: A Review and Meta-Analysis" by Jesse Bruhn and Emily Emick. The 44 papers summarized fall into three categories: studies of three model preschool programs begun in the 1960s known as…

This paper reviews research on the design and effectiveness of preschools in the United States. Three randomized controlled trials that enrolled roughly 350 total children in demonstration studies during the 1960s and 1970s shape much of the current discussion of preschool. We examine what these studies and more recent ones based on random…

Charter schools are highly debated in policy and political discussions about delivering public education. As "laboratories of innovation" that often use lotteries to assign spots, they hold the potential to generate rigorous evidence about effective educational practices. This paper synthesizes and summarizes findings from charter…

The past three decades have seen charter schools emerge as a prominent and controversial alternative to traditional public schools. This policy brief examines "Thirty Years of Charter Schools: What Does Lottery-Based Research Tell Us?" which summarizes 40 studies that have used lottery research designs to analyze how charter schools…