Northwestern Sr High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| ECA | ||||||
| 2010 | Algebra I | End of course | % met std | 59% | 67% | 61% |
| 2011 | Algebra I | End of course | % met std | 72.5% | 77.1% | 72.4% |
| 2012 | Algebra I | End of course | % met std | 83.3% | 86.3% | N/A |
| 2010 | Biology I | End of course | % met std | 34% | 34% | 37% |
| 2011 | Biology I | End of course | % met std | 54.2% | 54.2% | 46.9% |
| 2012 | Biology I | End of course | % met std | 51.0% | 51.0% | N/A |
| 2010 | English 10 | End of course | % met std | 74% | 74% | 63% |
| 2011 | English 10 | End of course | % met std | 79.4% | 79.4% | 71.9% |
| 2012 | English 10 | End of course | % met std | 90.1% | 90.1% | N/A |
| ISTEP+ | ||||||
| 2005 | English/Language Arts | 10th Grade | % met std | 87% | 87% | 68% |
| 2006 | English/Language Arts | 10th Grade | % met std | 87% | 87% | 68% |
| 2007 | English/Language Arts | 10th Grade | % met std | 85% | 85% | 67% |
| 2008 | English/Language Arts | 10th Grade | % met std | 81% | 81% | 68% |
| 2009 | English/Language Arts | 10th Grade | % met std | 82% | 82% | 67% |
| 2005 | Math | 10th Grade | % met std | 84% | 84% | 64% |
| 2006 | Math | 10th Grade | % met std | 92% | 92% | 64% |
| 2007 | Math | 10th Grade | % met std | 82% | 82% | 65% |
| 2008 | Math | 10th Grade | % met std | 82% | 82% | 66% |
| 2009 | Math | 10th Grade | % met std | 83% | 83% | 65% |
| 2005 | English/Language Arts | 9th Grade | % met std | 89% | 89% | 66% |
| 2006 | English/Language Arts | 9th Grade | % met std | 88% | 88% | 67% |
| 2007 | English/Language Arts | 9th Grade | % met std | 83% | 83% | 68% |
| 2008 | English/Language Arts | 9th Grade | % met std | 75% | 75% | 66% |
| 2005 | Math | 9th Grade | % met std | 93% | 93% | 68% |
| 2006 | Math | 9th Grade | % met std | 89% | 89% | 71% |
| 2007 | Math | 9th Grade | % met std | 88% | 88% | 67% |
| 2008 | Math | 9th Grade | % met std | 83% | 83% | 70% |
Some data by SchoolDigger.com.
* Northwestern Sr 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.