We often hear this lament from American conservatives: the majority of our universities are run by liberals, attended by liberals, and turning out more liberals by the thousand. Theories abound as to why this is. Perhaps we're dealing with a vast conspiracy of power-hungry eggheads, masterminding schemes of liberal indoctrination from ivory towers full of pipe smoke.
Perhaps—but we don't think so. We think there's a reasonable explanation for all of it: science. Specifically, personality psychology.