<p>how many hours do you need at a highly selective college for you to obtain sophomore standing through APs?</p>
<p>Look at each individual college's AP credit policy. They're all different. </p>
<p>For instance, Harvard requires four scores of 5, but only a few selected subjects qualify as a full credit. Some subjects don't even count a half a credit.</p>
<p>I think most colleges have it at 30. Though it's probably best to have 35+ incase you have to cancel some scores.</p>
<p>Generally freshman is 0-29, sophomore 30-59, junior 60-89, senior 90+. It all depends on the school, though. :)</p>