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Deltona High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| EOC | ||||||
| 2012 | Algebra 1 | End of course | Mean Scaled Score | 376 | 394 | 402 |
| 2013 | Algebra 1 | End of course | Mean Scaled Score | 384 | 406 | 406 |
| 2013 | Biology 1 | End of course | Mean Scaled Score | 408 | 415 | 404 |
| 2013 | Geometry | End of course | Mean Scaled Score | 401 | 405 | 403 |
| FCAT | ||||||
| 2004 | Math | 10th Grade | Mean Scaled Score | 319 | 320 | 323 |
| 2005 | Math | 10th Grade | Mean Scaled Score | 313 | 320 | 322 |
| 2006 | Math | 10th Grade | Mean Scaled Score | 314 | 322 | 324 |
| 2007 | Math | 10th Grade | Mean Scaled Score | 314 | 320 | 323 |
| 2008 | Math | 10th Grade | Mean Scaled Score | 322 | 326 | 327 |
| 2009 | Math | 10th Grade | Mean Scaled Score | 316 | 323 | 327 |
| 2010 | Math | 10th Grade | Mean Scaled Score | 322 | 327 | 331 |
| 2011 | Math | 10th Grade | Mean Scaled Score | 324 | 327 | 329 |
| 2004 | Reading | 10th Grade | Mean Scaled Score | 295 | 299 | 300 |
| 2005 | Reading | 10th Grade | Mean Scaled Score | 288 | 297 | 296 |
| 2006 | Reading | 10th Grade | Mean Scaled Score | 286 | 297 | 298 |
| 2007 | Reading | 10th Grade | Mean Scaled Score | 295 | 300 | 300 |
| 2008 | Reading | 10th Grade | Mean Scaled Score | 302 | 309 | 306 |
| 2009 | Reading | 10th Grade | Mean Scaled Score | 293 | 303 | 305 |
| 2010 | Reading | 10th Grade | Mean Scaled Score | 307 | 310 | 310 |
| 2011 | Reading | 10th Grade | Mean Scaled Score | 302 | 306 | 309 |
| 2012 | Reading | 10th Grade | Mean Scaled Score | 242 | 245 | 244 |
| 2013 | Reading | 10th Grade | Mean Scaled Score | 242 | 245 | 246 |
| 2006 | Science | 11th Grade | Mean Scaled Score | 292 | 304 | 298 |
| 2007 | Science | 11th Grade | Mean Scaled Score | 296 | 306 | 302 |
| 2008 | Science | 11th Grade | Mean Scaled Score | 297 | 306 | 304 |
| 2009 | Science | 11th Grade | Mean Scaled Score | 297 | 307 | 303 |
| 2010 | Science | 11th Grade | Mean Scaled Score | 298 | 311 | 306 |
| 2011 | Science | 11th Grade | Mean Scaled Score | 308 | 312 | 307 |
| 2007 | Math | 9th Grade | Mean Scaled Score | 291 | 299 | 302 |
| 2008 | Math | 9th Grade | Mean Scaled Score | 298 | 304 | 309 |
| 2009 | Math | 9th Grade | Mean Scaled Score | 305 | 308 | 313 |
| 2010 | Math | 9th Grade | Mean Scaled Score | 297 | 306 | 311 |
| 2007 | Reading | 9th Grade | Mean Scaled Score | 298 | 308 | 308 |
| 2008 | Reading | 9th Grade | Mean Scaled Score | 304 | 313 | 313 |
| 2009 | Reading | 9th Grade | Mean Scaled Score | 313 | 317 | 316 |
| 2010 | Reading | 9th Grade | Mean Scaled Score | 308 | 315 | 317 |
| 2011 | Reading | 9th Grade | Mean Scaled Score | 314 | 318 | 317 |
| 2012 | Reading | 9th Grade | Mean Scaled Score | 236 | 240 | 240 |
| 2013 | Reading | 9th Grade | Mean Scaled Score | 237 | 239 | 240 |
Some data by SchoolDigger.com.
* Deltona High School, Test Performance was rated 3.5 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.