ACT assessment is a three-hour college entrance exam composed of four tests in academic areas (English usage, mathematics, reading, and science reasoning). Scores are reported on a scale of 1-36 for each academic area, as well as a composite score that averages the four tests. As well as using the ACT composite score as part of the admissions process, some colleges may award college course credit for ACT individual tests in the academic areas.

An examination administered by ACT, Inc. (formerly the American College Testing Program). The ACT Assessment® is designed to assess high school students' general educational development and their ability to complete college-level work. The ACT differs from the SAT in that it assesses students' knowledge in the curricular areas of English, mathematics, reading, and science reasoning.

The ACT is a standardized, multiple-choice, college admission exam. It is accepted for admission by almost all colleges and universities in the United States, including all Ivy League schools. ACT scores also are frequently used for course placement and scholarship eligibility. The test is administered six times per year. The ACT takes approximately three and a half hours to complete, including breaks. Actual testing time is two hours and 55 minutes. There are four sections: English, mathematics, reading and science reasoning.