The ACT attempts to measure the general education and knowledge of the test taker. While the SAT traditionally focused its examination strictly on verbal and mathematical reasoning, the ACT contains sections on English, Math, Reading, Science, and even an optional writing section (which has been added to the SAT in recent years as well). The scoring system also differs from the SAT. While the SAT is scored on a scale between 900 to 2400 (traditionally, it was only scored up to 1600: 800 points for each of its two sections; but this was changed within the last decade), the ACT is scored on a scale of 11 to 36 (no change from traditional metrics). While 36 represents a perfect score, 90% of students receive a 27 or better and over 50% receive a 20 or better.