<p>One would expect that any of the APs which are relatively well accepted for college subject credit and placement are predominantly taken by seniors and perhaps a few juniors (with younger takers being rare prodigies) as the top level of an honors sequence (e.g. AP calculus as the top level of the high school’s honors math sequence, AP English as the top level of the high school’s honors English sequence).</p>
<p>Those routinely taken by non-prodigy freshmen and sophomores are rather likely to be the “AP lite” courses that are unlikely to get much, if any, college subject credit and placement. So 12+ AP courses likely includes a significant number of “AP lite” courses.</p>