Joseph Mastin High, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| SOL | ||||||
| 2006 | English Reading | 8th Grade | % met std | 17% | 17% | 78% |
| 2006 | Mathematics | 8th Grade | % met std | 0% | 7% | 76% |
| 2007 | Mathematics | 8th Grade | % met std | 7% | 7% | 77% |
| 2006 | Biology | End of course | % met std | 64% | 62% | 83% |
| 2005 | Earth Science | End of course | % met std | 10% | 35% | 80% |
| 2006 | Earth Science | End of course | % met std | 29% | 44% | 81% |
| 2007 | Earth Science | End of course | % met std | 40% | 42% | 85% |
| 2006 | English Reading | End of course | % met std | 77% | 71% | 90% |
| 2006 | VA and US History | End of course | % met std | 45% | 64% | 91% |
| 2006 | Writing | End of course | % met std | 69% | 66% | 88% |
Some data by SchoolDigger.com.