Chatsworth Grade School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| ISAT | ||||||
| 2003 | Math | 3rd Grade | % met std | 71.5% | 88.8% | 75.7% |
| 2004 | Math | 3rd Grade | % met std | 94.8% | 87.9% | 79.1% |
| 2005 | Math | 3rd Grade | % met std | 91.7% | 89.7% | 79.3% |
| 2006 | Math | 3rd Grade | % met std | 100.0% | 96.1% | 85.6% |
| 2007 | Math | 3rd Grade | % met std | 100% | 98.0% | 86.7% |
| 2008 | Math | 3rd Grade | % met std | 100.0% | 95.0% | 85.1% |
| 2009 | Math | 3rd Grade | % met std | 100.0% | 95.8% | 85.2% |
| 2010 | Math | 3rd Grade | % met std | 100.0% | 96.2% | 86.4% |
| 2011 | Math | 3rd Grade | % met std | 91.3% | 95.8% | 87.3% |
| 2012 | Math | 3rd Grade | % met std | 80.0% | 92.9% | 87.7% |
| 2013 | Math | 3rd Grade | % met std | 55.0% | 55.7% | 54.8% |
| 2003 | Reading | 3rd Grade | % met std | 61.9% | 66.5% | 62.0% |
| 2004 | Reading | 3rd Grade | % met std | 73.7% | 75.0% | 65.1% |
| 2005 | Reading | 3rd Grade | % met std | 75.0% | 80.7% | 66.6% |
| 2006 | Reading | 3rd Grade | % met std | 85.8% | 84.7% | 70.7% |
| 2007 | Reading | 3rd Grade | % met std | 95% | 91.8% | 72.9% |
| 2008 | Reading | 3rd Grade | % met std | 94.5% | 90.5% | 71.8% |
| 2009 | Reading | 3rd Grade | % met std | 87.5% | 86.6% | 72.2% |
| 2010 | Reading | 3rd Grade | % met std | 89.5% | 90.8% | 73.7% |
| 2011 | Reading | 3rd Grade | % met std | 91.3% | 91.0% | 74.7% |
| 2012 | Reading | 3rd Grade | % met std | 66.6% | 89.6% | 76.0% |
| 2013 | Reading | 3rd Grade | % met std | 70.0% | 67.9% | 58.8% |
| 2006 | Math | 4th Grade | % met std | 100.0% | 94.3% | 84.8% |
| 2007 | Math | 4th Grade | % met std | 100.0% | 98.6% | 86.4% |
| 2008 | Math | 4th Grade | % met std | 88.9% | 94.6% | 84.6% |
| 2009 | Math | 4th Grade | % met std | 94.1% | 95.6% | 85.8% |
| 2010 | Math | 4th Grade | % met std | 88% | 93.0% | 85.9% |
| 2011 | Math | 4th Grade | % met std | 90.5% | 97.0% | 87.7% |
| 2012 | Math | 4th Grade | % met std | 91.7% | 96.6% | 88.1% |
| 2013 | Math | 4th Grade | % met std | 41.2% | 70.6% | 60.2% |
| 2006 | Reading | 4th Grade | % met std | 84.6% | 83.8% | 72.9% |
| 2007 | Reading | 4th Grade | % met std | 92.8% | 91.2% | 73.7% |
| 2008 | Reading | 4th Grade | % met std | 88.9% | 87.0% | 73.2% |
| 2009 | Reading | 4th Grade | % met std | 100.0% | 84.4% | 73.8% |
| 2010 | Reading | 4th Grade | % met std | 72% | 84.1% | 73.7% |
| 2011 | Reading | 4th Grade | % met std | 66.7% | 90.0% | 74.7% |
| 2012 | Reading | 4th Grade | % met std | 70.8% | 84.9% | 76.0% |
| 2013 | Reading | 4th Grade | % met std | 47.1% | 68.0% | 59.2% |
| 2003 | Science | 4th Grade | % met std | 66.6% | 84.5% | 66.5% |
| 2004 | Science | 4th Grade | % met std | 60% | 85.1% | 67.8% |
| 2005 | Science | 4th Grade | % met std | 95.4% | 92.3% | 71.4% |
| 2006 | Science | 4th Grade | % met std | 100.0% | 92.9% | 79.9% |
| 2007 | Science | 4th Grade | % met std | 100.0% | 95.9% | 79.7% |
| 2008 | Science | 4th Grade | % met std | 94.5% | 94.6% | 76.2% |
| 2009 | Science | 4th Grade | % met std | 88.3% | 94.4% | 76.8% |
| 2010 | Science | 4th Grade | % met std | 92% | 90.1% | 76.6% |
| 2011 | Science | 4th Grade | % met std | 85.8% | 94.6% | 79.4% |
| 2012 | Science | 4th Grade | % met std | 87.5% | 95.2% | 79.8% |
| 2013 | Science | 4th Grade | % met std | 82.4% | 92.2% | 80.9% |
Some data by SchoolDigger.com.
* Chatsworth Grade School, Test Performance was rated 4 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.