I would also say that more than half of a college bound student’s potential AP exams are taken after college admissions decisions have been made. Since colleges don’t want to have students more stressed out than is the case now, can you imagine if colleges suddenly say we need you to submit all your AP exam scores for tests taken from 9-11th grade. Can you imagine the chaos, confusion and added pressure? For what? Do you think the colleges are having problems admitting anyone?
What’s the problem you’re trying to fix?