<p>What's the purpose of the experimental section? It get's thrown out, doesn't it? So why does it exist?</p>
<p>Collegeboard tries out new test questions to see if they are good enough to use on a later test. They don't want to use one that nobody answers correctly, that seems sex-biased, etc.</p>
<p>Oh, I see. lol I feel like a experimental hamster...</p>