A study conducted in Germany found that men with higher IQs are less inclined to traditional values, but the lead author, psychologist and intelligence researcher Maximilian Krolo of Saarland University, said the researchers did not find these differences among women.


Ran across a paper years ago that did confirm this, but laid out various reasons why, including:
As the saying goes, your kid didn’t become a “dirty leftist/commie” because they were indoctrinated by their professors. They became one as a reaction to being exposed to the wider world and all of its variety.
But was causality established? That’s a very difficult thing to do. I’d like to read the paper if you can find it.
Because it’s just as plausible that people predisposed to think critically are more likely to both go to college and move left politically in early adulthood.