American College Testing (ACT) is a computer-based national standardized entrance exam for high school students. The test is a measurement of the aptitude and critical thinking of a student willing to get admission to colleges and universities in the USA. 

ACT is a multiple-choice test and is administered by ACT Inc., USA. The ACT results are reviewed by colleges and universities in the United States while admitting students to schools. Therefore, performing well on the ACT is a key component to your future.