Both the SAT and ACT are comprised of multiple sections that contribute to your overall score. A Superscore involves selecting the best possible test score by combining the best individual section scores across different testing dates. While Superscoring is beneficial on both tests, it is more advantageous on the ACT, which is comprised of 4 sections (as opposed to the 2 sections on the SAT). Not all colleges do Superscoring, and some that Superscore the SAT do not also Superscore the ACT. This information is readily available online.