The Scholastic Aptitude Test (SAT) is a standardized test commonly used for college admissions in the United States. It assesses a student's readiness for college-level work by evaluating their knowledge and skills in reading, writing, and mathematics. The SAT consists of multiple-choice questions and an optional essay. It is designed to measure critical thinking, problem-solving, and analytical abilities. The test is typically taken by high school students, and their scores are considered by colleges and universities as part of the admissions process.