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J Exp Psychol Gen. 2013 May;142(2):573-603. doi: 10.1037/a0029146. Epub 2012 Jul 9.

Bayesian estimation supersedes the t test.

Author information

1
Department of Psychological and Brain Sciences, Indiana University, 1101 East 10th Street, Bloomington, IN 47405-7007, USA. kruschke@indiana.edu

Abstract

Bayesian estimation for 2 groups provides complete distributions of credible values for the effect size, group means and their difference, standard deviations and their difference, and the normality of the data. The method handles outliers. The decision rule can accept the null value (unlike traditional t tests) when certainty in the estimate is high (unlike Bayesian model comparison using Bayes factors). The method also yields precise estimates of statistical power for various research goals. The software and programs are free and run on Macintosh, Windows, and Linux platforms.

PMID:
22774788
DOI:
10.1037/a0029146
[Indexed for MEDLINE]

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