A multivariate analysis finds that, even after taking into account the effects of professional accomplishment, along with many other individual characteristics, conservatives and Republicans teach at lower quality schools than do liberals and Democrats. This suggests that complaints of ideologically-based discrimination in academic advancement deserve serious consideration and further study. The analysis finds similar effects based on gender and religiosity, i.e., women and practicing Christians teach at lower quality schools than their professional accomplishments would predict.(Emphasis added.) If the finding suggesting discrimination against women fits your preconceptions, doesn't that lend some credence to the possibility that the study may prove right in the suggestion that practicing Christians are discriminated against?
Of course you can imagine many reasons why Christians end up in schools of lower quality than you'd expect based on their research. But then isn't it permissable to voice alternatives to discrimation-based explanations for why women end up in schools of lower quality than you'd expect based on their research productivity?
ASIDE: SCSUScholars ends with this observation,
That is, regardless of who teaches them - male or female, Christian or not, liberal or conservative - students' core values are largely unaffected.
Kurtz notes that the AAUP's representative says "a number of studies show the core values that students bring into the university are not very much altered by being in college."