Student Growth Percentiles 101
Using Relative Ranks in Student Test Scores to Help Measure Teaching Effectiveness
One way to estimate a teacher’s effectiveness is to compare the improvement of his or her students with the improvement of other similar students. This approach is called student growth percentiles (SGPs). SGPs are used to make student growth comparisons fair by comparing the growth of students who start in academically similar places. SGPs are used in places where standardized tests are administered annually to all students.