Only wins and losses. That's part of why basketball started going away from it because a 1-point win was the same as a 60-point win. But I am not completely sure if there is another formula for other sports.
With as bad as the conference is the two things I would guess that are holding up CSU as much as it is are no losses away from home and a pretty solid OOC RPI, in which almost every team is top 100. Hilbert knew what he was doing with that schedule, at least.