<p>SAT IIs are meant to test mastery of a subject at the high school level. APs are meant to test mastery of a subject at an introductory college level. You would think that APs could be substituted for SAT IIs in the same subject, since they are a higher level. However, I know of no college that allows this. The reasoning is that colleges want everyone in the applicant pool to take the same level test so that they can be easily compared to each other. It helps colleges compare students who may have the same grades from very different high schools. Colleges cannot require AP scores for this purpose since so many high schools do not offer them. So they require SAT IIs from everyone, but only require AP scores from people wanting to use them for advanced placement.</p>
<p>All of that said, APs do count in the admissions process. They are not "required", and students should not report low scores. But admissions officers do look at them when they have them, and will boost a student who has a bunch of good AP scores. </p>
<p>Michelle Hernandez, former Dartmouth ad com, has an entire chapter devoted to AP and IB scores on pp 90-93 of her book A is for Admission. Here are some relevant passages:</p>
<p>" Perhaps the easiest and most effective way to override a mediocre AI (Academic Index) and to stand out academically is to score well on AP or IB exams. Although these are not factored into the AI formula (they are not offered by all high schools and therefore cannot be required by colleges), they are in many ways more useful for highly selective colleges than SAT II scores"</p>
<p>"So what effect can these AP or IB scores have on your application? A big one. (examples) ...even if the student's AI placed him in the academic 5 or 6 category (out of 9), the officer would probably boost the academic rating to a 7 because of excellent AP scores. In addition, if the student didn't seem to be that exceptional academically, a number of high AP scores could suddenly change the picture dramatically."</p>
<p>And Rachel Toor, former Duke ad com, writes about AP scores on p. 92-93 of College Confidential:</p>
<p>"Although the scores on the (AP) tests were meant, originally, for placement into higher level college courses and were not intended to be used in college admissions, they are. We expect students to score 5s on their tests. If they get a couple of 4s, that's okay, but anything below a 4 doesn't help much. We don't require that students report these scores for admission; if they do, however, we use them. I always told students that if they scored below a 4, not to report it to us."</p>