Send to

Choose Destination
Psychon Bull Rev. 2009 Aug;16(4):752-60. doi: 10.3758/PBR.16.4.752.

How to quantify support for and against the null hypothesis: a flexible WinBUGS implementation of a default Bayesian t test.

Author information

University of Amsterdam, Amsterdam, The Netherlands.


We propose a sampling-based Bayesian t test that allows researchers to quantify the statistical evidence in favor of the null hypothesis. This Savage-Dickey (SD) t test is inspired by the Jeffreys-Zellner-Siow (JZS) t test recently proposed by Rouder, Speckman, Sun, Morey, and Iverson (2009). The SD test retains the key concepts of the JZS test but is applicable to a wider range of statistical problems. The SD test allows researchers to test order restrictions and applies to two-sample situations in which the different groups do not share the same variance.

[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center