Chelsea Middle School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| OCCT | ||||||
| 2009 | Math | 7th Grade | % met std | 44% | 44% | 63% |
| 2010 | Math | 7th Grade | % met std | 62% | 62% | 65% |
| 2011 | Math | 7th Grade | % met std | 51% | 51% | 68% |
| 2009 | Reading | 7th Grade | % met std | 63% | 63% | 70% |
| 2010 | Reading | 7th Grade | % met std | 64% | 64% | 67% |
| 2011 | Reading | 7th Grade | % met std | 72% | 72% | 72% |
| 2009 | Math | 8th Grade | % met std | 60% | 60% | 61% |
| 2010 | Math | 8th Grade | % met std | 61% | 61% | 66% |
| 2011 | Math | 8th Grade | % met std | 58% | 58% | 67% |
| 2009 | Reading | 8th Grade | % met std | 69% | 69% | 67% |
| 2010 | Reading | 8th Grade | % met std | 69% | 69% | 70% |
| 2011 | Reading | 8th Grade | % met std | 73% | 73% | 77% |
| 2009 | Science | 8th Grade | % met std | 90% | N/A | N/A |
| 2010 | Science | 8th Grade | % met std | 73% | 73% | 88% |
| 2011 | Science | 8th Grade | % met std | 86% | N/A | 89% |
Some data by SchoolDigger.com.
* Chelsea Middle 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.