Here is the link to the story on CNN.
Yet the religious have lower I.Q.s than the nonreligious.
A couple of things jump out at me in reading the article. "One study..." being the biggest. Every science and statistics teacher I have ever had has told me to watch out for those two buzzwords together. One study, no matter how large, does not necessarily represent a truth, or even good findings.
The second being that "researchers were concerned" with the findings. This to me says they had some kind of bias toward church going to begin with. If anything I'd be concerned that more college educated people are NOT flocking away from churches, not that non-college educated people ARE.
Lastly, I'd like to point out that having a "higher education", especially among white americans, is not necessarily the greatest litmus test for actual intelligence... Heck, just look at our former president! Just because someone has the money to get the piece of paper from a four year college, doesn't mean they earned it, and these days it doesn't even mean they are in fact "smarter" than those who do not have said piece of paper. (and this is coming from one who holds such a piece of paper!)
But heck, IMO, any news that larger groups of people are leaving church and religion behind, is good news to me! It's a step in the right direction to leaving all kinds of other nonsense and baggage that goes along with it behind as well.
The figures are for church attendance, not belief. I've personally known lots of people who claim a belief in god but who rarely, if ever, attend church.
It could be that some of those in the more educated group are sceptical but attend church for social reasons. For example, to maintain a position in the local community, foster business contacts, or to keep in with the boss. Church attendance may be considered a nice respectable professional middle class activity in their community. People join golf clubs for career advancement, so why not churches?
Just because the church attendance figure for the group with less schooling is lower doesn't mean that those who don't go to church are all atheists.