Garrett High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| ECA | ||||||
| 2010 | Algebra I | End of course | % met std | 63% | 70% | 61% |
| 2011 | Algebra I | End of course | % met std | 79% | 83.2% | 72.4% |
| 2012 | Algebra I | End of course | % met std | 77.6% | 82.1% | N/A |
| 2010 | Biology I | End of course | % met std | 36% | 36% | 37% |
| 2011 | Biology I | End of course | % met std | 44.2% | 44.2% | 46.9% |
| 2012 | Biology I | End of course | % met std | 50.0% | 50.0% | N/A |
| 2010 | English 10 | End of course | % met std | 69% | 69% | 63% |
| 2011 | English 10 | End of course | % met std | 75.8% | 75.8% | 71.9% |
| 2012 | English 10 | End of course | % met std | 78.6% | 78.6% | N/A |
| ISTEP+ | ||||||
| 2005 | English/Language Arts | 10th Grade | % met std | 71% | 71% | 68% |
| 2006 | English/Language Arts | 10th Grade | % met std | 74% | 74% | 68% |
| 2007 | English/Language Arts | 10th Grade | % met std | 76% | 76% | 67% |
| 2008 | English/Language Arts | 10th Grade | % met std | 73% | 73% | 68% |
| 2009 | English/Language Arts | 10th Grade | % met std | 75% | 75% | 67% |
| 2005 | Math | 10th Grade | % met std | 75% | 75% | 64% |
| 2006 | Math | 10th Grade | % met std | 81% | 81% | 64% |
| 2007 | Math | 10th Grade | % met std | 89% | 89% | 65% |
| 2008 | Math | 10th Grade | % met std | 84% | 84% | 66% |
| 2009 | Math | 10th Grade | % met std | 80% | 80% | 65% |
| 2005 | English/Language Arts | 9th Grade | % met std | 72% | 72% | 66% |
| 2006 | English/Language Arts | 9th Grade | % met std | 81% | 81% | 67% |
| 2007 | English/Language Arts | 9th Grade | % met std | 71% | 71% | 68% |
| 2008 | English/Language Arts | 9th Grade | % met std | 79% | 79% | 66% |
| 2005 | Math | 9th Grade | % met std | 86% | 86% | 68% |
| 2006 | Math | 9th Grade | % met std | 90% | 90% | 71% |
| 2007 | Math | 9th Grade | % met std | 83% | 83% | 67% |
| 2008 | Math | 9th Grade | % met std | 86% | 86% | 70% |
Some data by SchoolDigger.com.
* Garrett High School, Test Performance was rated 5 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.