<p>It would remove the hassle to wait the three weeks</p>
<p>Other time zones have to take it as well. And nobody is allowed to have the answers. What if a student were to steal it from the place the SAT exams are stored? And there are multiple test forms and different experimental sections.</p>
<p>Furthermore, the scaling from raw to final score can’t be calculated until an analysis of the experimental sections is done, so you wouldn’t be able to determine your score anyway.</p>
<p>How are the experimental sections used in determining scaled scores? If people do well on the experimentals, do they assume that the group of test-takers was smart and adjust the scales accordingly?</p>
<p>^That’s pretty close. The experimental sections (formally known as the equating sections) contain repeated (identical) questions from previous tests. This allows for a separate determination of the quality of the people taking the test, which is needed to determine the difficulty of the test. For the gory details, see [this</a> CB whitepaper](<a href=“http://professionals.collegeboard.com/profdownload/pdf/rn14_11427.pdf]this”>Higher Education Professionals | College Board).</p>