Many colleges use the SAT Accuplacer as a placement test.
Placement testing provides information about your levels of proficiency in the skill areas tested (reading, writing, and math). This information is used to place you in appropriate-level courses.
In some cases, these courses will be non-college-credit courses or intensive college-level courses designed to help you improve your skills and support your college-level studies.
Because your test results will determine which courses you will be required to take, it is very important that you take this testing seriously and that you perform to the best of your abilities.