<p>There are a few tricks though with evaluating AP exams. </p>
<p>Firstly, at most schools, a student takes most (or at least many) of their AP courses in their last year. Since the exams are not taken until the end of the year, that means that for most students, the AP exam scores are not available until after the admissions decision has already been made. MIT can of course look at tests that you have taken earlier, but whether these have been taken at all is usually much more a reflection of the school rather than of the student, and is therefore much less useful in evaluating the student’s accomplishments. </p>
<p>So while MIT will be able to see that a student in their last year of secondary school is enrolled in a large number of AP courses (and indeed whether these courses are offered at all is again largely out of the control of the student), and that can help in showing a commitment to taking the most challenging course load possible, the scores are less important.</p>
<p>So as I understand it, the short answer to your question is that MIT will certainly look at them, but they are much less relevant than other parts of the application. As with any question on weighting, all of this is informed speculation for anyone not actually in the MIT selection committee.</p>