Breaking the Early Bell: Lessons from the First Statewide Mandate on School Start Times
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We examine the impact of California's Senate Bill 328 (SB 328), the first statewide mandate requiring later school start times for middle and high schools, on adolescent sleep, mental health, and academic outcomes. Using difference-in-differences and event- study designs across five data sources, we
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美国国家经济研究局创建时间：
2026-05-01
