Grad schools and the supposed liberal bias

ACCUSATIONS OF LIBERAL BIAS: Graduate schools may seem to be less accommodating to conservatives, but how much truth lies in the stereotype? While some look to the possibility of liberal bias, those running the institutions have other explanations. "One — the most tactful hypothesis — is that conservatives just aren’t interested in academic careers. Another — the most smug hypothesis — is that conservatives are just too close-minded and dimwitted. Now, fortunately, we have something beyond hypotheses, courtesy of scholars who have been taking a close look at their colleagues." Take a look at the full article for their findings. Although I don't rule out the idea that grad schools possess some level of bias towards one side of the political spectrum, I suspect much of the sentiment regarding whatever 'issue' exists surrounding the matter to be based on an inkling, or at least more so than certainty. "Conservatives may be self-selecting out of graduate school, but they’re doing it on a rational basis. It’s become clear to them that they’re unlikely to succeed at the same level as someone going into these fields with more socially approved political convictions and attitudes." I disagree.