> I have many regions that are correlated at r = .4 ish… How do I determine the
> significance (p value) for the correlation values? I cannot think of an easy way
> to determine this value.
Are you talking about the individual or group level? At the individual level, there is a t-statistic associated with the PPI effect. At the group level, you should run t-test on the beta for the PPI effect and obtain the significance.
Gang
