13 well-worn criticisms of significance tests (and how to avoid them)

December 24, 2012
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(This article was originally published at Error Statistics Philosophy » Statistics, and syndicated at StatsBlogs.)

IMG_12432013 is right around the corner, and here are 13 well-known criticisms of statistical significance tests, and how they are addressed within the error statistical philosophy, as discussed in Mayo, D. G. and Spanos, A. (2011) “Error Statistics“.

  •  (#1) error statistical tools forbid using any background knowledge.
  •  (#2) All statistically significant results are treated the same.
  • (#3) The p-value does not tell us how large a discrepancy is found.
  • (#4) With large enough sample size even a trivially small discrepancy from the null can be detected.
  •  (#5) Whether there is a statistically significant difference from the null depends on which is the null and which is the alternative.
  • (#6) Statistically insignificant results are taken as evidence that the null hypothesis is true.
  • (#7) Error probabilities are misinterpreted as posterior probabilities.
  • (#8) Error statistical tests are justified only in cases where there is a very long (if not infinite) series of repetitions of the same experiment.
  • (#9) Specifying statistical tests is too arbitrary.
  • (#10) We should be doing confidence interval estimation rather than significance tests.
  • (#11) Error statistical methods take into account the intentions of the scientists analyzing the data.
  • (#12) All models are false anyway.
  • (#13) Testing assumptions involves illicit data-mining.

You can read how we avoid them in the full paper here.

Mayo, D. G. and Spanos, A. (2011) “Error Statistics” in Philosophy of Statistics , Handbook of Philosophy of Science Volume 7 Philosophy of Statistics, (General editors: Dov M. Gabbay, Paul Thagard and John Woods; Volume eds. Prasanta S. Bandyopadhyay and Malcolm R. Forster.) Elsevier: 1-46.


Filed under: Error Statistics, significance tests, Statistics Tagged: criticism of frequentist methods



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