<p>I’m wondering how Sunday testing is curved compared with Saturday testing. Since different tests are administered on the two different days for a testing weekend, are there different raw-to-scaled-score conversions? Or are all the tests for the entire weekend thrown into one big pot and then given a single curve (for that type of test, that is)?</p>
<p>Tests are not really curved in the sense that most people think. CB has a bank of a gazillion test questions, which are classified as easy, moderate or hard. They know with near-absolute certainty, that xx % of all testers will miss the classic average-speed-rate problem (if-a-train-leaves Chicago…) every time it is on a test version. Thus, by definition, they know which Test version is hard, moderate, and easy. The raw-scaled scores are thus done in advance. A hard math test for example, may allow one miss to earn a 800, a moderate may allow one blank to earn an 800, and an easy test version requires all correct for an 800. Everyone taking that test version and scoring 100% will earn a 800, regardless of how many do that one specific day.</p>
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<p>Aren’t these the same things, though?</p>