I think it's interesting that this was covered by Reason and that liberty/oppression is apparently part of the theory now. I wondered why it wasn't mentioned when I first encountered Haidt's ideas, because it seemed to me that would leave libertarians valuing the same things as liberals (fairness and (lack of) harm), but different interpretations of those values. That's how I had felt when taking that test, anyway: I felt that my ideals were coherent and well-defined, but it showed up very much like Mangu-Ward's results, as if I were a less-moral liberal.
Edit: typo.