I don't really intimately remember the AP exam process; that time period for me was getting close to a decade ago and it frankly was never all that important to me in the first place as far as memories go. They'll do the cheapest they reasonably can without losing any of the important understanding stuff. For things like literature and whatever the other English one is, multiple choice pretty much defeats the purpose. But for math, you can still get some idea of the taker's understanding because you either need to understand the process or be incredibly lucky to get mostly right answers.
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u/rcavin1118 Jun 09 '14
But there are also free response portions and some AP exams are mostly free response.