Simple but valid question: "so what really defines a school as liberal vs conservative?"

FWIW - Niche ranks colleges on either a liberal or conservative scale. So for example Liberty University is #2 of 744 most conservative colleges and Carleton College is #2 of 678 most Liberal colleges. My DD and her friend were talking about going to see SMU in Dallas together and when they discovered that it was #29 of 774 most conservative schools they crossed it off the list. Some of my DD’s schools fall on the conservative list, but are toward the very upper end of the scale with the thought that there will be students all along the political spectrum.