STAR Reading, STAR Early Literacy and STAR Math are standardized, computer-adaptive assessments created by Renaissance Learning, Inc., for use in K-12 education. Each is a "Tier 2" assessment of a skill (reading practice, math practice, and early literacy, respectively) that can be used any number of times due to item-bank technology. These assessments fall somewhere between progress monitoring tools ("Tier 1") and high-stakes tests.