Progress Component


Progress looks closely at the growth all students are making based on their past state test performances. The Progress Component measures the academic performance of students compared to expected growth on Ohio’s State Tests. This calculation uses a “value-added” model of measuring academic growth that compares the change in achievement of a group of students to an expected amount of change in achievement that is based on the students’ prior achievement history. 


The Progress Component has one measure, the overall value-added progress measure, that contributes fully to the star rating. Students’ state tests results are examined through a series of calculations by the department’s vendor, SAS, to produce an overall value-added score. The overall value-added score is used to assign a star rating to schools and districts. There are additional data reported with the Progress Component which do not factor into the star rating and are noted below. 

Previous component ratings were assigned based solely on a “growth index.” The growth index provides a level of evidence that the growth observed is statistically different than the growth expected. Another way to interpret this is that the growth index tells us how sure we are that the growth happened in comparison to what we expected. 

As set forth in legislation, and through consultation with stakeholders, the updated Progress Component includes a second step to assign ratings. The second step uses an “effect size” to measure the magnitude and it helps standardize and interpret the value-added growth measurement. Another way to say this is that the effect size helps measure the amount of the growth that took place between the two years’ tests.

Technical Documentation and Resources

Last Modified: 2/1/2024 2:48:37 PM