Science and technology help you zero-in on student skills.
STAR Enterprise assessments use the most sophisticated statistical and test-creation technology and psychometrics to get more value out of each testing session. Extensive item calibration determines each test item’s difficulty in relation to thousands of real students, applying advanced principles of Item Response Theory (IRT) and computer-adaptive testing.
STAR Enterprise assessments dynamically adjust to each student’s unique responses, pinpointing student achievement levels quickly and efficiently.
With millions of tests taken each year all over the country, Renaissance Learning has the largest student-response database anywhere. Using these data, STAR psychometricians develop accurate predictive statistics, alignments to state and Common Core standards, measure student growth, and learning progressions for detailed instructional planning guidance.




