Karl Pearson’s Best Quotation?

NB. The next post will discuss two of Karl Pearson’s worst quotations.                 “The field of science is unlimited; its material is endless, every group of natural phenomena, every phase of social life, every stage of past or present development is material for science. The unity of all science consists alone in its…

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Quantifying Support for the Null Hypothesis in Psychology: An Empirical Investigation

This post summarizes the content of an article that is in press for Advances in Methods and Practices in Psychological Science.1 The preprint is available on PsyArXiv. In the traditional statistical framework, nonsignificant results leave researchers in a state of suspended disbelief. This study examines, empirically, the treatment and evidential impact of nonsignificant results. Our specific goals were twofold: to…

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Bayesian Reanalysis of Null Results Reported in Medicine: Strong Yet Variable Evidence for the Absence of Treatment Effects

This post summarizes the content of an article that is in press for PLOS ONE. The preprint is available on PsyArXiv. Efficient medical progress requires that we know when a treatment effect is absent. We considered all 207 Original Articles published in the 2015 volume of the New England Journal of Medicine and found that 45 (21.7%) reported a null…

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Bayesian Tutorials Galore

This post highlights a recent special issue on Bayesian inference edited by Joachim Vandekerckhove, Jeff Rouder, and John Kruschke for Psychonomic Bulletin & Review. What sets this special issue apart is that most of the 16 contributions (spanning a total of 285 pages!) have a tutorial character. Researchers and students who are new to Bayesian inference –its theoretical underpinnings, its…

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