Well I don't think this study was actually necessary as it only makes sense. People who question are more likely to investigate. To do that you have to gain knowledge. People who are less likely to question the norm, aren't going to do that and obviously won't be as educated in the "university" sense.
But as someone said, IQ doesn't mean you are smart or not. It just means that you know a lot of stuff, that is well probably useless anyways. Trust me, I'm the keeper of a lot of useless knowledge. As Rousseau argued (another one of my useless knowledge banks), the every day worker who supports his family and lives an honest life is smart in his own right. Not everyone needs or should know everything, or pretend to know everything.
But I identify myself as an atheist (sort of), a liberal (in the old sense which I'm assuming they are meaning here as they are stating it in a way that protects the right for many), and I'm not sure what "male sexual exclusivity" is but oh well.
