To the OP, I think the studies are on to something, and the diifference would be even more striking if there was nuance between, say, rational skeptics and fundamentalists; and very small between Episcopelians and Raellians (could even swing the other way).
I think it makes a difference what kind of theist and what kind of atheist we're talking about.
I think it makes a difference what kind of theist and what kind of atheist we're talking about.