Impacts of the four-day school week on early elementary achievement

•Four-day school week is associated with:•Minimal overall impact on 3rd grade test scores•Reductions in 3rd grade scores for above median scorers on pre-K assessments•No impact on 3rd grade scores for below median scorers on pre-K assessments•Reductions in 3rd grade scores for White, general education, and gifted students•No impact on 3rd grade scores for minority, low income, and special ed students