# Bayes Factor for Paired or One Sample t-Tests with Equivalence Regions

** Summary: ** This calculator computes Bayes factor for paired or one-sample t-test designs where the null hypothesis may be a point, a region, or a mixture of the two.

** Priors: ** The prior on the null and alternative are the "hybrid model setup" of Morey and Rouder, submitted

** Citation/Details ** Morey and Rouder (submitted)

** Notes **

i. Prior effect-size distributions are Cauchy distributed

ii. Computations done with Gaussian quadrature for σ^{2} and with Laplace's approximation for δ.

iii. Input Inf and -Inf for equivalence regions that extend to ∞ and -∞, respectively.

** Questions: ** r.d.morey@rug.nl

** Support: ** NSF SES-0720229.

** Last Update ** 6/10.