What kind of “errors” in self reporting are you talking about, @ellicott? If students misreported their AP test scores to try to gain an advantage, whether it would actually gain them one or not, colleges would find out when CB reports the actual scores. Students who lie on their app can have admission rescinded, so it does them no good anyway. Can we say for sure that all elite colleges will treat 2 sets of AP scores exactly the same no matter what they are? No. We may be able to tell from the Common Data Set whether or not colleges consider the scores, but we really have no way of knowing what part they play in admission decisions.