Using the student-to-faculty ratio figures from the NCES database, we calculated how many students each school had per faculty member. Kiplinger recognized that a smaller student-to-faculty ratio is ideal, as that indicates each student is getting more personal instruction.
The NCES database did not have retention rate figures for all of the colleges on our list. We did not, however, want to penalize those colleges without data. To that end, we simply excluded those schools from the rankings in this category.