The PSAT is a practice version of the SAT exam. You can only take the PSAT once per year, and many students take the test in both 10th and 11th grade. If you earn a high score on the PSAT your junior year, you could qualify to receive a National Merit Scholarship. The PSAT is 2 hours and 45 minutes long and tests your skills in reading, writing, and math. Unlike the SAT, the highest score possible on the PSAT is 1520. Check back for the date and cost. It is available on a first come-FIRST PAID basis.