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The relationship between homework time and academic performance among K-12: A systematic review
Guo et al. 2024 · review pooling many studies (meta-analysis) · touches 1 claim · used in 1 attack · used in 1 correction to our notes
Read the study itself (doi.org) ↗
Which beliefs it touches
- C27 Homework and achievement sets a limit on it
Weakened C27 2026-11-03: homework vs none g = 0.45 [0.24, 0.66] across 10 controlled studies published 1939–1995 (6 in grades 3–6, 4 in grades 7–12), mostly at moderate to critical risk of bias and tested only at the end; the K–6 "small" is correlational only. (Grade mix corrected against the full text 2026-11-04.)
Attacks that used it
- C27 attack #1, 3 November 2026: narrowed
Corrections to our notes that used it
- C27, 4 November 2026: corrected