期刊
PERSPECTIVES ON PSYCHOLOGICAL SCIENCE
卷 6, 期 3, 页码 274-290出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1745691611406920
关键词
statistical inference; Bayes; significance testing; evidence; likelihood principle
Researchers are often confused about what can be inferred from significance tests. One problem occurs when people apply Bayesian intuitions to significance testing-two approaches that must be firmly separated. This article presents some common situations in which the approaches come to different conclusions; you can see where your intuitions initially lie. The situations include multiple testing, deciding when to stop running participants, and when a theory was thought of relative to finding out results. The interpretation of nonsignificant results has also been persistently problematic in a way that Bayesian inference can clarify. The Bayesian and orthodox approaches are placed in the context of different notions of rationality, and I accuse myself and others as having been irrational in the way we have been using statistics on a key notion of rationality. The reader is shown how to apply Bayesian inference in practice, using free online software, to allow more coherent inferences from data.
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