Cited by 298Statistical Methods and Bayesian InferenceMeta-analysis and systematic reviewsStatistics Education and Methodologies

When Null Hypothesis Significance Testing Is Unsuitable for Research: A Reassessment

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Szucs, Denes, Ioannidis, John P. A.·2017·Frontiers in Human Neuroscience

Published version of a preprint

Abstract

Null hypothesis significance testing (NHST) has several shortcomings that are likely contributing factors behind the widely debated replication crisis of (cognitive) neuroscience, psychology, and biomedical science in general. We review these shortcomings and suggest that, after sustained negative experience, NHST should no longer be the default, dominant statistical practice of all biomedical and psychological research. If theoretical predictions are weak we should not rely on all or nothing hypothesis tests. Different inferential methods may be most suitable for different types of research questions. Whenever researchers use NHST they should justify its use, and publish pre-study power calculations and effect sizes, including negative findings. Hypothesis-testing studies should be pre-registered and optimally raw data published. The current statistics lite educational approach for students that has sustained the widespread, spurious use of NHST should be phased out.

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Crossref · 10.3389/fnhum.2017.00390

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  • In cases where complications arise, analysing the data with multiple methods can test the robustness of conclusions.

    “In cases where complications arise it can be extremely useful to analyse the data with multiple methods to test the robustness of conclusions24,126.”

    From A phylogenetic approach to comparative genomics (2025) · cites this paper as [126]

    In “NHST may foster selective reporting and subjectivity” (page unavailable), the paper says different analytical choices can produce a range of results, including opposite effects. “Ways to change” (page unavailable) warns that small changes in analysis settings can alter statistical outcomes. These passages support checking whether conclusions depend on analytical choices, but the paper does not specifically recommend analysing complicated data with multiple methods to test robustness. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • The use of statistical methods has been demonstrated to be suboptimal in some fields.

    “The use of statistical methods has been demonstrated to be suboptimal in some fields.”
  • Misuse and misinterpretation of null-hypothesis testing methods have high prevalence.

    “Major threats that have high prevalence include the misuse and misinterpretation of null-hypothesis testing methods19,20”

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1 of the 197 references couldn’t be matched to a known paper.

Research works printed but not linked: 5

  1. Chaisson E. McMillan S. (2017). Astronomy Today. Pearson.
  2. Cohen J. (1988). Statistical Power Analysis for the Behavioural Sciences. Academic Press.
  3. Fisher R. (1925). Statistical Methods for Research Workers, First Edition. Edinburgh: Oliver and Boyd.
  4. Jeffreys H. (1939, 1948, 1961). The Theory of Probability. Oxford: Oxford University Press.
  5. Smolin L. (2006). The Trouble with Physics. London: Penguin.

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Authors
Szucs, D., & Ioannidis, J. P. A.
Affiliations
Stanford Medicine (US)
Venue
Frontiers in Human Neuroscience
Published
2017-08-03
Volume
11
Pages
390-390
ISSN
1662-5161 (ISSN-L)
OpenAlex
W2951307730
Cited by
298
References
197
Citations by year
2026: 18 · 2025: 28 · 2024: 21 · 2023: 34 · 2022: 44 · 2021: 31 · 2020: 48 · 2019: 39 · 2018: 29 · 2017: 6
FWCI
6.14
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Human Neuroscience (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Apollo (University of Cambridge) (submittedVersion, cc-by)
  • Apollo (cc-by)
Funders
James S. McDonnell Foundation (220020370)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Bayesian Inference
  • Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Meta-analysis and systematic reviews
  • Physical Sciences › Mathematics › Statistics and Probability › Statistics Education and Methodologies
Keywords
null hypothesis significance testing, replication crisis, statistical inference, preregistration, power analysis, effect size, negative results, statistics education, research methodology critique, hypothesis testing

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