As a side note; shortly after this there was a brouhaha about a young Asian girl who had graduated from the local HS as the Valedictorian. She got to university and realized that she was not prepared for the work at the college level. She came to a school board meeting to tell the school board that they needed to look into their Advanced Placement classes as they were not preparing students for college. The SB told her that she had obviously not done her work and was unprepared for college. This was the Valedictorian of the school If she was unprepared, it was because the school had not prepared her.
Later, the School Board admitted that their Advanced Placement classes were no different in subject matter or difficulty than a regular class. They just had students in them who actually behaved and wanted to study.
Schools that teach so called Advanced placement courses but do not have the vast majority ( or all) of the students take the advanced placement test are probably not really teaching the full advanced placement curriculum. The advanced placement test is a rigorous fair test of the subject matter, at least it was until about 15 years ago. Those who have the ability, complete the curriculum and study hard will probably do well; otherwise they won’t.