Table of Contents

Teacher Value-Added


The teacher composite combines each teacher's growth measures from relevant tests, subjects, and years to report a composite index and level (1-5).

For the 2022-23 reporting year, three evaluation composites are available for each teacher.

  • Single-Year Composite, comprised solely of value-added measures from the 2022-23 school year

  • Multi-Year Composite without 2021, comprised of value-added measures from the 2021-22 and 2022-23 school years

  • Multi-Year Composite (up to 3 years), comprised of value-added measures from 2020-21, 2021-22 and 2022-23 school years

Weighting within each year is by the number of students, then each year is weighted equally. For more information see section 6.1 in Statistical Models and Business Rules.

The Evaluation Composite combines, where applicable, each teacher's TCAP and EOC value-added growth measures to report the associated index and level (1-5) across all assessments. Because the growth measures for each grade and subject or course are on different scales, it's not possible to provide a meaningful composite growth measure. However, growth index values across all grades, subjects, and courses are on the same scale, so they can be combined in an appropriate and meaningful way. As a result, you will see a single index value for the composite. This value incorporates both the growth of the teacher's students and the associated standard error. Links to additional resources from the Tennessee Department of Education are here.