Four-Day School Week Technical Report
Last data update: April 2025
The Four-Day School Week at K-12 Schools in the United States: A Scoping Review of Empirical Research Evidence
Sean Grant1, Shaina D. Trevino1, Katarzyna Steinka-Fry1, Elizabeth Day1, Beatriz Cabrera1, Samantha Hamilton1, Samantha Martinez1, Lisa Chinn1, and Emily E. Tanner-Smith1
1HEDCO Institute for Evidence-Based Educational Practice,
College of Education, University of Oregon
Sean Grant https://orcid.org/0000-0002-7775-3022
Shaina D. Trevino https://orcid.org/0000-0002-4046-1210
Katarzyna Steinka-Fry https://orcid.org/0000-0002-2201-9090
Elizabeth Day https://orcid.org/0000-0001-8141-0762
Beatriz Cabrera https://orcid.org/0009-0001-6687-913X
Samantha Hamilton https://orcid.org/0009-0007-0985-3551
Samantha Martinez https://orcid.org/0009-0005-8850-4493
Lisa K. Chinn https://orcid.org/0000-0001-8498-9909
Emily E. Tanner-Smith https://orcid.org/0000-0002-5313-0664
Correspondence should be addressed to the study guarantor: Sean Grant, HEDCO Institute for Evidence-Based Educational Practice, HEDCO Education Building, 365 6247, Eugene, OR 97403-6247, United States. Email: spgrant@uoregon.edu