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the claim

Cramming produces better long-term retention than spaced study.

the verdict
REFUTED
the evidence says no
Recorded sources
0 sources for · 5 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Cramming produces better long-term retention than spaced study?

No. A reference article states cramming tends to produce poor long-term retention (the spacing effect), and a 2021 cohort study found spaced and massed anatomy instruction gave equal long-term retention, while a nap study found cramming's early advantage gone after a week.

Verdict: REFUTED · 0 sources for, 5 against · Last checked

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Evidence against · 5
Cramming (education)
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Cramming (education). (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Cramming_(education)

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More against · 4
Front-loading of anatomy content has no effect on long-term anatomy knowledge retention among physical therapy students: a prospective cohort study
2021
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Amabile, A. H., Kim, N., Georgetti, L. J., & Sims, A. C. (2021). Front-loading of anatomy content has no effect on long-term anatomy knowledge retention among physical therapy students: a prospective cohort study. doi.org. https://doi.org/10.1186/s12909-021-02925-z

A Review of Judgments of Learning and Executive Functions in Spaced Learning: The Enemy of Spacing?
2025
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X, Y. (2025). A Review of Judgments of Learning and Executive Functions in Spaced Learning: The Enemy of Spacing?. doi.org. https://doi.org/10.7759/cureus.77230

Evidence of the Spacing Effect and Influences on Perceptions of Learning and Science Curricula -
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Evidence of the Spacing Effect and Influences on Perceptions of Learning and Science Curricula - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.7759/cureus.21201

The long-term memory benefits of a daytime nap compared with cramming
2018
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Cousins, J., Wong, K., Raghunath, B. L., Look, C., & Chee, M. (2018). The long-term memory benefits of a daytime nap compared with cramming. doi.org. https://doi.org/10.1093/sleep/zsy207

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