How is the Value-Added Measure calculated?
Ohio expects student test scores to show an average year’s worth of growth compared to test scores from the previous year. To calculate the Value-Added Measure, each student’s scores in reading and math are compared to his or her scores from the previous year. The results for all students are then averaged together. Schools that meet the state’s growth expectation receive a checkmark and the rating “Met Expected Growth.” Schools whose growth is greater than the state’s expectation receive a plus sign and the rating “Above Expected Growth.” Schools that did not achieve as much growth as the state expected receive a minus sign and the rating “Below Expected Growth.” The ratings for each grade and subject are then combined to create an Overall Rating for the school. The ratings for each grade and subject and the Overall Rating are displayed on GreatSchools profiles.
