I am a proud alumnus of Rice University and I see that it is on page 64, fifth from the bottom. Also, even more surprisingly, very near the bottom is Caltech. This is obviously wrong. If their methodology says that Caltech is in the bottom 2% of US colleges, then one concludes that their methodology is worthless, or at least that what it's predicting is not very closely related to the quality of the education provide…
It's not "ranked by alumni earning".