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What is Value-Added Analysis?

A key component of the ASPIRE model is using high-quality data sources, particularly value-added analysis, to guide instructional decision-making. Value-added analysis is a statistical method used to measure teachers’ and schools’ impact on students’ academic progress rates from year to year.

HISD uses value-added analysis calculated via Dr. William Sanders’ EVAAS® model to measure student progress at the school, grade, teacher, and student levels. EVAAS® is recognized as the most statistically rigorous model for calculating value-added analysis nationwide.

Simply said, this progress metric shows the impact teachers and schools have on students' academic performance. Using this growth metric, teachers, schools, and districts can begin interpreting the impact of their curriculum, instruction, programs, and practices on student achievement.

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