Peer review improves the validity of published scientific findings.

Is it true that peer review improves the validity of published scientific findings?

Partly. The retrieved items offer only partial and mixed coverage: some commentary and one journal study assert peer review acts as a quality-control filter that improves published work, while other commentary and a preprint-versus-published comparison argue peer review often fails to change findings or filter flawed studies. No item directly measures whether peer review improves the validity of published scientific findings at the strength the claim asserts.

Verdict: CONTESTED PARTIAL · 4 sources for, 4 against · Last checked 3 Oct 2026

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

Lapeña, J. F. F. (2014). Reviewing Peer Review. doi.org. https://doi.org/10.32412/pjohns.v29i1.447

Peer evaluation and feedback for invasive medical procedures: a systematic review. (n.d.). cir.nii.ac.jp. https://doi.org/10.1186/s12909-022-03652-9

Jackson, J. L., Srinivasan, M., Rea, J., Fletcher, K. E., & Kravitz, R. L. (2011). The Validity of Peer Review in a General Medicine Journal. doi.org. https://doi.org/10.1371/journal.pone.0022475

Tarkang, E. & Bain, L. (2019). The bane of publishing a research article in international journals by African researchers, the peer-review process and the contentious issue of predatory journals: a commentary. doi.org. https://doi.org/10.11604/PAMJ.2019.32.119.18351

Bornmann, L. & Daniel, H. (2010). The Usefulness of Peer Review for Selecting Manuscripts for Publication: A Utility Analysis Taking as an Example a High-Impact Journal. doi.org. https://doi.org/10.1371/journal.pone.0011344

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

Button, K., Bal, L., Clark, A., & Shipley, T. (2016). Preventing the ends from justifying the means: withholding results to address publication bias in peer-review. doi.org. https://doi.org/10.1186/s40359-016-0167-7

Malički, M., Jerončić, A., Bouter, L., Riet, G. t., Ioannidis, J., Aalbersberg, I. J., & Goodman, S. N. (2022). Elucidating the effects of peer review. doi.org. https://doi.org/10.15291/pubmet.3941