Meta-Analysis of the Effects of Early Education Interventions on Cognitive and Social Development
by Gregory Camilli, Sadako Vargas, Sharon Ryan, and W. Steven Barnett
2008
Summary
Designed to synthesize preschool outcomes from the broadest set of comparative studies collected to date, the conclusions of this meta-analysis are based on the results of 120 studies carried out over five decades. The authors found that there are substantial positive cognitive benefits for children who attend preschool education programs prior to entering kindergarten. Positive results were also found for children's social skills and school progress. The article can be found at Teachers College Record.
Video
Steve Barnett on how preschool education dramatically reduces the achievement gap: