Thaddeus Stevens School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| PSSA | ||||||
| 2005 | Math | 3rd Grade | % met std | 74% | 75% | 81% |
| 2006 | Math | 3rd Grade | % met std | 88% | 84% | 83% |
| 2007 | Math | 3rd Grade | % met std | 80.6% | 77.4% | 78.5% |
| 2008 | Math | 3rd Grade | % met std | 78.1% | 77.5% | 80.5% |
| 2009 | Math | 3rd Grade | % met std | 80.3% | 74.7% | 81.7% |
| 2010 | Math | 3rd Grade | % met std | 89.6% | 87.6% | 84.5% |
| 2011 | Math | 3rd Grade | % met std | 94.8% | 87.7% | 83.5% |
| 2012 | Math | 3rd Grade | % met std | 90.1% | 86.8% | 80% |
| 2005 | Reading | 3rd Grade | % met std | 62% | 57% | 68% |
| 2006 | Reading | 3rd Grade | % met std | 77% | 69% | 69% |
| 2007 | Reading | 3rd Grade | % met std | 71% | 70.8% | 72.8% |
| 2008 | Reading | 3rd Grade | % met std | 76.8% | 79.3% | 76.8% |
| 2009 | Reading | 3rd Grade | % met std | 78% | 75.9% | 77% |
| 2010 | Reading | 3rd Grade | % met std | 81.8% | 76.6% | 75.2% |
| 2011 | Reading | 3rd Grade | % met std | 91% | 82.6% | 77.2% |
| 2012 | Reading | 3rd Grade | % met std | 78.8% | 76.4% | 74.1% |
Some data by SchoolDigger.com.
* Thaddeus Stevens School, Test Performance was rated 3 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.