GHA students routinely perform in the 80th percentile or higher compared to the national norm and outperform their peers in other independent and suburban schools regularly. As students progress through the curriculum, they improve their standing relative to both the national average and other independent and suburban schools. Scores are measured on the CTP 4, the Comprehensive Testing Program, which is a set of tests designed to assist in measuring student performance in reading, writing and mathematics.

3rd Grade CTP Results (click to enlarge)

5th Grade CTP Results  (click to enlarge) 

8th Grade CTP Results (click to enlarge)