Common App or Princeton's App

<p>You can’t change anything on the common apps after submitted. Same of everything for every school (I think that is stupid). I agree with your statements that about AP is not reliable signal of interest, but it is a signal. Demonstrated interest is much less important, but it will become important if everthing else equals. It is impossible to get hard evidence for things like this. But from what I knew, saw and heard, demonstrated interest does make a difference at Princeton/Harvard/Stanford (no data from Yale). Think about, Princeton had ED, not EA and that shows you how important demonstrated interest to them . Same people are still running the show. Again, they will accept CA and many of them to show they do accept CA to keep the pool large. They also accept some ppl with lower grades (don’t send hate mails. I am not suggesting these two are equal) to keep everybody guessing to increase the pool, but it does not mean you should get lower grades.</p>