Combined p-Values

The test statistic is:

$X^2 = -2\sum^k_{i=1} \log p_i$

where:

$p_i$ is the p-Value of the $i$th of $k$ tests, and

$p = \Pr(\chi^2_{2k} \ge X^2)$

See also

• Reading Tables and Interpreting Significance Tests
• Overview of Statistical Testing in Q