The SAT is most widely used admissions test among colleges and universities. It was initially used for admission to colleges & universities in USA. Over a period of time the SAT has become de facto test for admission to undergraduate programs in many countries. It tests students' knowledge of subjects that are necessary for college success: reading, writing, and mathematics.

The SAT assesses the critical thinking skills students need for academic success in college—skills that students learned in high school. The test is conducted by College Board. The SAT is typically taken by high school juniors and seniors. It tells students how well they use the skills and knowledge they have attained in and outside of the classroom—including how they think, solve problems, and communicate. The SAT is an important resource for co As the nation’s most widely used college admission test, the SAT is the first step toward higher education for students of all backgrounds. It’s taken by more than two million students every year and is accepted by virtually all colleges and universities.lleges. It's also one of the best predictors of how well students will do in college.

The current SAT Reasoning Test, introduced in 2005, takes three hours and forty-five minutes to finish, and costs $49 ($75 International), excluding late fees. Possible scores range from 600 to 2400, combining test results from three 800-point sections (Mathematics, Critical Reading, and Writing).