PSAT/NMSQT stands for Preliminary SAT/National Merit Scholarship Qualifying Test. It's a standardized test that provides first-hand practice for the New SAT. It also gives you a chance to qualify for National Merit Scholarship Corporation's (NMSC) scholarship programs.
The PSAT/NMSQT tests for:
These skills are developed over many years, both in and out of school therefore, this test doesn't require recalling specific facts from classes. The PSAT should definitely be taken junior year. Many students benefit from also taking it earlier, typically in their sophomore year (if they have already taken Geometry).
The most common reasons for taking the PSAT are to:
For more information please visit College Board