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 2021-22 reporting year, two evaluation composites are available for each teacher.

  • The 2021-22 composite includes value-added measures from the current year reporting (i.e., 2020-21).
  • The 2020-21 and 2021-22 composite includes value-added measures from the 2020-21 and 2021-22 reporting 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.