Above is a gift link. And the answer to the title question is… MONEY. What a surprise.
One of the “equity” measures used to rank high schools is what percentage of students attempt at least one AP course and exam. These high school rankings are important - they drive property values, because people want to move to towns with highly ranked high schools. It takes a bit of digging to get past the goosing of the rankings based upon “equity” measures as opposed to overall academic achievement. Hence, schools with lower test scores but who satisfy “equity” measures may wind up ranked higher than schools with better test scores.
My kids’ experience of AP in our good, diverse, inner-ring suburban public high school was that AP classes were often the first time that they had the opportunity for serious, high level instruction in sciences, history, and other subjects, and they took a lot of them. There was always one AP course that was designated as the class to be encouraged for any students for whom an AP level class was even a remote possibility. At one point, the school had four levels of 10th grade English: Honors, pre-AP, standard, remedial. The idea was to try to prepare students who weren’t honors level, to attempt AP English Language. Later on (and I suppose because that wasn’t working out very well), AP Psych became the class which was encouraged for every student to try. The teacher was a dynamic, engaging URM woman, very likable, made class interesting, and at the time, AP Psych was considered to be an easier AP. My kids said that the kids who were steered into AP Psych as their one attempt at an AP simply were not interested in doing the work. They didn’t do the readings, they didn’t do the assignments, they didn’t behave well in class, and not surprisingly, they didn’t do well on class exams. AP Psych, unlike all the other AP classes, had a record of a lot of scores of 5, and a lot of 1s and 2s on the AP exam. The other AP classes had virtually no 1s and 2s, a few 3s, and mostly 4s and 5s. This was pretty clear evidence that the issue was that the school had pushed students into AP Psych who should not have been there.
Obviously, College Board exists to make money, despite its supposed “mission-driven, non-profit” status. When colleges went test-optional, many students just stopped taking the SAT. When colleges stopped requiring the “achievement” subject exams, College Board finally dropped those too. A few years ago, College Board began pressuring AP students to register for the exam way, way ahead of time, in the mid fall, I would imagine because some students would decide in early spring not to take the test, and hence not register for it. My kids only took the exams if there was no dual enrollment option for the AP class with our flagship state U - that way, they got the credit on a college transcript, without the added stress of prepping for an AP exam.
So, do AP classes benefit students who really aren’t ready for serious college level work? Perhaps these students are better-served by high school level classes. As a reach, maybe they’re better off with dual enrollment in a community college class, rather than the challenge of an AP class. The exam clearly isn’t getting them college credit. And the bridge of dual enrollment in a community college class may serve as a springboard to encourage them to continue on to higher education, starting at that nearby community college.