“You’d like to think that since these institutions are getting the best students, the students who go there would have the best chances to succeed,” he says. “But if you take two students who have the same high school grade-point average and SAT scores, and you put one in a highly selective school like Berkeley and the other in a school with lower average scores like Cal State, that Berkeley student is at least 13 percent less likely than the one at Cal State to finish a STEM degree.”
This is interesting. Could it be that at more selective schools, when students encounter difficulty in STEM courses, they are less hesitant to switch to an easier major because they figure that their degree will still have value due to the name recognition of their university, while their counterparts at less selective schools don't have that luxury? That's one hypothesis...