<p>Per the NRC, Princeton sits right after Harvard in the aggregate of the core 32 grad programs. If Princeton’s “embarrassingly low” yield suggests that their Ph.D. students are of “poor quality” as sammy35 suggests, then either the NRC has no idea what they’re doing (doubtful), the Princeton faculty is significantly better than Harvard’s faculty so as to pull Princeton nearly even with Harvard in the NRC rankings (also doubtful), or sammy35’s conclusion that lower yield rate significantly decreases the quality of Princeton’s graduate students is just plain wrong. Take your pick.</p>