A test score is a numerical representation of a student's performance on an assessment, such as a quiz, exam, or standardized test. It indicates how well the student understood the material covered and is often used to evaluate their knowledge and skills in a specific subject area. Test scores can range from a low to a high value, depending on the scoring system used. Educators and institutions often use test scores to measure academic progress and make decisions about student placement, grading, and curriculum effectiveness. Additionally, standardized tests, like the SAT or ACT, provide a way to compare students across different schools and regions, helping colleges and universities in their admissions processes.