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Sabrina Pabilonia and Jeffrey Groen used time use data from the Child Development Supplement to the Panel Study of Income Dynamics to examine school start times, time use, and academic performance. Some findings in brief:
Results were published in the Economics of Education Review. A nontechnical summary is published here.
Jeffrey A. Groen and Sabrina Wulff Pabilonia. “Snooze or Lose: High School Start Times and Academic Achievement.” Economics of Education Review Vol. 72, 2019, pp. 204-218. https://doi.org/10.1016/j.econedurev.2019.05.011