Spaced practice produces a robust small-to-medium retention advantage over massed practice for mathematics learning overall (g = 0.26).¶

Claim · All claims
Evidence · 1 study · quant-synthesis r3 · q3 · i1 small
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i1 Across 25 studies with 49 effect sizes, spaced versus massed mathematics practice yields a weighted mean effect of g = 0.259 with a confidence interval excluding zero. → Murray 2023

Evidence¶

Murray 2023¶

Murray, E., Horner, A. J., & Göbel, S. M. (2023). A Meta-analytic Review of the Effectiveness of Spacing and Retrieval Practice for Mathematics Learning. https://osf.io/

q3 · i1 · quant-synthesis · r3

Pre-registered meta-analysis using robust variance estimation with correlated hierarchical effects over 25 spacing studies. The weighted mean effect was "g = 0.259 (se = 0.043)" with a 95% CI of [0.168, 0.351], indicating a robust small-to-medium effect.

"The systematic review revealed 25 studies with 49 effect sizes. We found a weighted mean effect of g = 0.259 (se = 0.043) (95% confidence interval [0.168, 0.351])."

Discussion¶

Related Claims¶

• When spacing is embedded into a course, spaced practice retains a robust but numerically smaller effect (g = 0.24) than for isolated material. — a narrower finding that bears on this claim
• Total retrieval spacing improved one-week vocabulary recall while relative schedules were not distinguished — related
• Spaced Practice Improves Retention — related
• For isolated mathematics material, spaced practice shows a larger but less precise effect (g = 0.38) than the overall spacing effect. — a narrower finding that bears on this claim
• Spaced retrieval practice produces better final retention than massed retrieval even though spacing lowers initial retrieval success, and more absolute spacing enhances long-term retention — related
• Spaced Retrieval Improves Retention — related
• Spaced retrieval practice outperformed both massed retrieval practice and no-practice control on delayed financial knowledge, while massed and control did not differ — related