Erath High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| GEE | ||||||
| 2007 | English Language Arts | 10th Grade | % met std | 76% | 59% | 56% |
| 2008 | English Language Arts | 10th Grade | % met std | 81% | 72% | 58% |
| 2010 | English Language Arts | 10th Grade | % met std | 83% | 72% | 63% |
| 2011 | English Language Arts | 10th Grade | % met std | 86% | 66% | 57% |
| 2007 | Mathematics | 10th Grade | % met std | 83% | 67% | 64% |
| 2008 | Mathematics | 10th Grade | % met std | 87% | 76% | 65% |
| 2010 | Mathematics | 10th Grade | % met std | 90% | 79% | 69% |
| 2011 | Mathematics | 10th Grade | % met std | 94% | 75% | 65% |
| 2007 | Science | 10th Grade | % met std | 74% | 67% | 60% |
| 2008 | Science | 10th Grade | % met std | 66% | 62% | 56% |
| 2010 | Science | 10th Grade | % met std | 83% | 70% | 60% |
| 2011 | Science | 10th Grade | % met std | 84% | 75% | 62% |
| 2007 | Social Studies | 10th Grade | % met std | 73% | 63% | 64% |
| 2008 | Social Studies | 10th Grade | % met std | 78% | 63% | 62% |
| 2010 | Social Studies | 10th Grade | % met std | 87% | 71% | 65% |
| 2011 | Social Studies | 10th Grade | % met std | 88% | 71% | 63% |
| 2012 | Science | 11th Grade | % met std | 92% | 75% | 64% |
| 2012 | Social Studies | 11th Grade | % met std | 97% | 76% | 66% |
| iLEAP | ||||||
| 2007 | English Language Arts | 9th Grade | % met std | 77% | 68% | 58% |
| 2008 | English Language Arts | 9th Grade | % met std | 77% | 73% | 62% |
| 2009 | English Language Arts | 9th Grade | % met std | 74% | 73% | 65% |
| 2010 | English Language Arts | 9th Grade | % met std | 89% | 72% | 64% |
| 2007 | Mathematics | 9th Grade | % met std | 82% | 72% | 57% |
| 2008 | Mathematics | 9th Grade | % met std | 80% | 71% | 61% |
| 2009 | Mathematics | 9th Grade | % met std | 85% | 81% | 64% |
| 2010 | Mathematics | 9th Grade | % met std | 90% | 75% | 65% |
Some data by SchoolDigger.com.
* Erath 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.