No universal guideline exists for judging the practical importance of a standardized effect size, a measure of the magnitude of an intervention’s effects. This working paper argues that effect sizes should be interpreted using empirical benchmarks — and presents three types in the context of education research.
In these remarks, delivered at Speaker Nancy Pelosi’s National Summit on America’s Children on May 22, MDRC President Gordon Berlin summarizes rigorous research evidence showing that supplementing the earnings of parents helps raise families out of poverty and improves the school performance of young children.
Findings from the Extended-Service Schools Initiative
Launched in 1997, the Extended-Service Schools (ESS) Initiative helped establish after-school programs in 17 communities across the country, each of which adapted one of four program models to local circumstances and needs.