<p>Well, GPA is not directly factored into the study. It is simply a valid assumption that SAT scores and GPA positively correlate. Your school may simply have its own niche as an “Ivy feeder” (which you are surely aware of) or appropriately recognized for its stringent grading procedures. </p>
<p>For GPA to be equitably factored into something of this magnitude, it would need to be standardized against all other grading systems. But that is terribly difficult to do considering the sheer variety of evaluation standards among all secondary schools worldwide.</p>