USA.com / California / Gratton Elementary School District / Gratton Charter Primary School / Test Performance
Gratton Charter Primary School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| STAR | ||||||
| 2011 | Mathematics | 3rd Grade | Mean Scaled Score | 395.1 | 395.1 | 400.6 |
| 2011 | English Language Arts Standards | 5th Grade | Mean Scaled Score | 385.9 | 380.8 | 362 |
| 2011 | Mathematics | 5th Grade | Mean Scaled Score | 412 | 425.6 | 392.6 |
| 2011 | Science | 5th Grade | Mean Scaled Score | 404.1 | 400.8 | 367.2 |
| 2011 | English Language Arts Standards | 6th Grade | Mean Scaled Score | 394.5 | 385.5 | 358.4 |
| 2012 | English Language Arts Standards | 6th Grade | Mean Scaled Score | 386.4 | 383.4 | 364.2 |
| 2011 | Mathematics | 6th Grade | Mean Scaled Score | 396.6 | 393.1 | 364.6 |
| 2012 | Mathematics | 6th Grade | Mean Scaled Score | 376.8 | 378.2 | 366.8 |
| 2012 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 413.8 | 398.2 | 366.6 |
| 2013 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 391.2 | 388.9 | 363.5 |
| 2012 | Mathematics | 7th Grade | Mean Scaled Score | 397.4 | 380.5 | 360.5 |
| 2013 | Mathematics | 7th Grade | Mean Scaled Score | 377.9 | 379.9 | 357.9 |
Some data by SchoolDigger.com.
* Gratton Charter Primary School, Test Performance was rated 4.5 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.