A's from Zzzz's? The Causal Effect of School Start Time on the Academic Achievement of Adolescents

• 成果类型: Article
• 署名作者: Carrell, Scott E.; Maghakian, Teny; West, James E.
• 署名单位: University of California System; University of California Davis; National Bureau of Economic Research; United States Department of Defense; United States Air Force; United States Air Force Academy
• 刊物名称: AMERICAN ECONOMIC JOURNAL-ECONOMIC POLICY
• ISSN/ISSBN: 1945-7731
• DOI: 10.1257/pol.3.3.62
• 发表日期: 2011
• 页码: 62-81
• 关键词: delayed phase; sleep loss; performance; students; IMPACT

摘要

Recent sleep research finds that many adolescents are sleep-deprived because of both early school start times and changing sleep patterns during the teen years. This study identifies the causal effect of school start time on academic achievement by using two policy changes in the daily schedule at the US Air Force Academy along with the randomized placement of freshman students to courses and instructors. Results show that starting the school day 50 minutes later has a significant positive effect on student achievement, which is roughly equivalent to raising teacher quality by one standard deviation. (JEL I23, J13)