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Peer review improves the methodological quality of published psychological research.

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CONTESTED PARTIAL
Recorded sources
2 sources for · 1 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 peer review improves the methodological quality of published psychological research?

Partly. One synthesis of biomedical journals and one scoping review of health preprints report that peer review improves reporting and methodological quality, while a metaresearch commentary notes reviews often fail to catch errors in psychological journals. None of the placed sources directly measures peer review's effect on the methodological quality of published psychological research.

Verdict: CONTESTED PARTIAL · 2 sources for, 1 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 2
Effects of Editorial Peer Review
2002
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Effects of Editorial Peer Review. (2002). doi.org. https://doi.org/10.1001/jama.287.21.2784

Evidence against · 1
The present and future of peer review: Ideas, interventions, and evidence -
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The present and future of peer review: Ideas, interventions, and evidence - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1073/pnas.2401232121

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More for · 1
Comparison of preprints and their corresponding peer-reviewed publications in the health field: a scoping review
2026
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Comparison of preprints and their corresponding peer-reviewed publications in the health field: a scoping review. (2026). doi.org. https://doi.org/10.1186/s41073-026-00189-z

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