# Bayes Factor A/B Testing

I am just starting to look at Bayesian statistics and so far I am aware that Bayes factor summarizes some form of evidence of an alternative hypothesis against the null one.

$B_1_0=\frac{p(D|H_1)}{p(D|H_0)}$

As far as I know we can compare two competing models that use the same data, but is it not possible in any way to apply it to A/B testing?

## 1 Answer

You can always think about your data as about a single set. In A/B testing it just happens that part of your dataset is related only to the method A and the other part is related only to the method B.