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A Meta-analytic Review of the Effectiveness of Spacing and Retrieval Practice for Mathematics Learning
Murray et al. 2025 · review pooling many studies (meta-analysis) · touches 2 claims · used in 1 attack
Read the study itself (doi.org) ↗
Which beliefs it touches
- C11 Spacing and interleaving backs it up
Preregistered meta: course-embedded maths spacing beat massed, g = 0.24 (17 studies, exams 2 days–5 weeks later). C11 kill-condition test survived 2026-10-17.
- C0 Retrieval beats restudy sets a limit on it
Maths retrieval vs restudy: g = 0.18 over 7 studies, CI crossing zero (abstract). Lead for C0, not routed.
Attacks that used it
- C11 attack #3, 17 October 2026: survived