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Questionable research practices in ecology and evolution

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  • Hannah Fraser
  • Tim Parker
  • Shinichi Nakagawa
  • Ashley Barnett
  • Fiona Fidler

Abstract

We surveyed 807 researchers (494 ecologists and 313 evolutionary biologists) about their use of Questionable Research Practices (QRPs), including cherry picking statistically significant results, p hacking, and hypothesising after the results are known (HARKing). We also asked them to estimate the proportion of their colleagues that use each of these QRPs. Several of the QRPs were prevalent within the ecology and evolution research community. Across the two groups, we found 64% of surveyed researchers reported they had at least once failed to report results because they were not statistically significant (cherry picking); 42% had collected more data after inspecting whether results were statistically significant (a form of p hacking) and 51% had reported an unexpected finding as though it had been hypothesised from the start (HARKing). Such practices have been directly implicated in the low rates of reproducible results uncovered by recent large scale replication studies in psychology and other disciplines. The rates of QRPs found in this study are comparable with the rates seen in psychology, indicating that the reproducibility problems discovered in psychology are also likely to be present in ecology and evolution.

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  • Hannah Fraser & Tim Parker & Shinichi Nakagawa & Ashley Barnett & Fiona Fidler, 2018. "Questionable research practices in ecology and evolution," PLOS ONE, Public Library of Science, vol. 13(7), pages 1-16, July.
    • Handle: RePEc:plo:pone00:0200303
    DOI: 10.1371/journal.pone.0200303
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    References listed on IDEAS

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    Cited by:

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    2. Nathalie Percie du Sert & Viki Hurst & Amrita Ahluwalia & Sabina Alam & Marc T Avey & Monya Baker & William J Browne & Alejandra Clark & Innes C Cuthill & Ulrich Dirnagl & Michael Emerson & Paul Garne, 2020. "The ARRIVE guidelines 2.0: Updated guidelines for reporting animal research," PLOS Biology, Public Library of Science, vol. 18(7), pages 1-12, July.
    3. Tierney, Warren & Hardy, Jay H. & Ebersole, Charles R. & Leavitt, Keith & Viganola, Domenico & Clemente, Elena Giulia & Gordon, Michael & Dreber, Anna & Johannesson, Magnus & Pfeiffer, Thomas & Uhlman, 2020. "Creative destruction in science," Organizational Behavior and Human Decision Processes, Elsevier, vol. 161(C), pages 291-309.

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