I recently took the Meyer-Briggs and confirmed that I'm an introvert. But what was really interesting is tbe counselor who administered it told me 75% of everyone are extrovert. I wonder what the percentage is among this group of atheists, centrists, anti-theists etc.
The main association with a correlation to Atheism that I've seen is with "thinking types": xNTJ xNTP xSTP xSTJ. BTW Hitchens is commonly thought to have been an INTJ, Dawkins INTP. But these are just opinions, exceptions abound, and the Meyers-Briggs isn't hard science.
They'd have to add religious questions to the Meyer-Briggs test.