alt Hacker News> I figure it's an emergent property based on the self-selected group who join the respective organizations plus some exposure to new ideas.
There are plenty of conservatives interested in anthropology; there’s no reason to think they’ve self-selected out of the pool, so then we have to consider if conservatives enter the field but are exposed to new ideas such that none remain conservatives for long (this seems unlikely), or that these departments have been taken over by people who explicitly use their influence within these departments to promote certain narratives; this is far more likely as they have been explicitly stating that this is what they are doing for decades now.
This theory is further corroborated by where you see this bias; it’s the least pronounced in quantitative, technical fields (mathematics, engineering, chemistry), and most pronounced in fields that are almost completely qualitative.
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> or that these departments have been taken over by people who explicitly use their influence within these departments to promote certain narratives
What mechanisms do these department heads use to suppress conservative viewpoints in research? While politics in academia can be vicious, it's never a grand conspiracy like you think it is, it's typically, and depressingly petty issues and grudges.
Being interested is not the same as being competent.
Conservatism is not a doctrine of competence. Experience shows time and again that conservatives can't think, can't plan, and can't govern. They act in emotional and purely self-interested ways to promote rigid hierarchies, and are reliably surprised by consequences that are obvious and predictable to rational educated actors.
Brexit. Anti-vax campaigns. Anti-masking. Racism. "Lowering corporate taxes makes everyone richer."
All delusional, all emotionally motivated, all predictable failures with terrible consequences.
I'm not sure what evidence you would expect to see if it was self-selection because of an in-group mentality versus explicit hostility to intentionally keep some out.
By comparison, is there some affirmative evidence for the reason why there are so few liberals in the FBI is because they self-selected out, instead of that the FBI being perceived as a conservative institution causes them to self-select out?