I don't have hard data to back it up, but beyond programming, I imagine there's a higher incidence rate of changing majors in undergrad, going back to do a mast

I don't have hard data to back it up, but beyond programming, I imagine there's a higher incidence rate of changing majors in undergrad, going back to do a masters in a field different than what you originally studied, and other such things going on. (going back for a law degree, mba, what have you).