<p>When i visited Upenn, the admissions officer there said that they superscore so that on US News rankings and stuff like that they can say that their incoming class has a higher average SAT score and therefore obtain a higher ranking. Im sure that a score taken in one sitting will be viewed differently by an admissions officer than an equal superscore from 5 sittings. I mean, the readers are human beings and can recognize that a single sitting 2400 means more than a 2400 that is pieced together from many tests (although it is also an amazing score).</p>