ACT, SAT, TSI

ACT     American College Testing     https://www.act.org/

SAT     Scholastic Aptitude Test       https://www.collegeboard.org/

TSI     Texas Success  Initiative      Visit College For All Texans          http://www.collegeforalltexans.com/

These standardized test are college entrance tests, and are used to measure a student's readiness for post-secondary education and college placement.