Creators of the SAT exam plans to toughen the test in the face of stagnant national scores, planning to challenge students to provide more analysis, cite evidence and even turn in their calculators before answering some math questions. The new version will be first administered in 2016. About 1.6 million students take the exam each year, and only 43% of the high school class of 2013 scored high enough to succeed in college. The SAT last had a redesign in 2005. The freshly overhauled SAT test includes a more challenging essay assignment scored on the strength of analysis as well as writing. As a result of this change, the top score for the new SAT will drop from 2400 to 1600.