Starting the middle-school day one hour later would lead to a 3-percentile-point gain in math-and-reading test scores for the average student, says Finley Edwards of Colby College. His study of schools in a North Carolina county where start times are staggered shows that 45% of students have math-test scores at or below the 50th percentile in early-starting schools, compared with only 36% at late-starting schools. The effect may be the result of any of several factors, including sleep duration, adolescents' hormonal cycles, and amount of time spent at home with parents, Edwards says.
I believe it!
Read more from the Economics Department at Colby College.
I believe it!
Read more from the Economics Department at Colby College.
