This Education Next article summarizes the Manhattan Institute's original study, An Evaluation of Florida's Program to End Social Promotion, which was released in December 2004. The study examines Florida's program to end social promotion. The authors analyze the test scores of two third-grade cohorts over the period of one year. The authors conclude that there are substantial positive effects associated with retention in this program. This Education Next article summarizes the Manhattan Institute's original study, An Evaluation of Florida's Program to End Social Promotion, which was released in December 2004. The study examines Florida's program to end social promotion. The authors analyze the test scores of two third-grade cohorts over the period of one year. The authors conclude that there are substantial positive effects associated with retention in this program.