I agree that there are other factors that enter into the equation. It isn’t possible to quantify many important intangible factors. Test scores, however, can tell you if you are a reasonable candidate for admission. Other factors can compensate for lower test scores but only in a limited way. I posted the data to help prospective students identify reaches, matches, and safeties which are inherently probabilistic designations. For example, a reasonable reach school might be one where your test scores are in the lower 25% but where you might get in because of outstanding ECs, recs, citizenship activities, or a hook. The data might also help students identify potential schools that they had not previously considered. The data is designed to serve as a rough guide. On the other hand, I think tests scores tend to be correlated with outstanding credentials in other areas, but not perfectly correlated. Students also consider things like distance from home (state), region of the country, net cost, public versus private. There are things I did not include in the data which are important to students such as urban versus suburban versus rural location. Of course, it is essential that the school offers your major. Some majors are less common than others. I think the fastest growing major in the country right now is Homeland Security (not found everywhere).