Percentage of students scoring proficient or higher
2014 2015 2016 2017 2018 N 287 279 380 358 328 # 222 219 240 246 213 Chelsea % 77% 79% 63% 69% 65% N           #           Select a Comparable District %           N 70,465 69,751 69,938 70,268 70,532 # 63,214 63,701 63,901 63,887 63,833 State % 89% 91% 92% 91% 91%		2014 2015 2016 2017 2018 N 297 278 387 371 326 # 165 136 154 156 115 Chelsea % 56% 49% 40% 42% 36% N           #           Select a Comparable District %           N 70,607 69,766 69,954 70,340 70,187 # 55,436 54,851 54,359 55,415 54,500 State % 78% 78% 78% 79% 78%		2014 2015 2016 2017 2018 N 276 256 366 341 286 # 162 132 129 118 101 Chelsea % 59% 51% 35% 35% 35% N           #           Select a Comparable District %           N 68,495 67,732 67,941 68,063 67,875 # 48,613 48,530 49,868 50,590 50,532 State % 71% 71% 73% 74% 75%
Composite Performance Index (CPI)
2014 2015 2016 2017 2018 N 287 279 380 358 328 # 222 219 240 246 213 Chelsea CPI 89 89.10 82.60 84.60 83.10 N           #           Select a Comparable District CPI           N 70,465 69,751 69,938 70,268 70,532 # 63,214 63,701 63,901 63,887 63,833 State CPI 96 96.70 96.70 96.50 96.20		2014 2015 2016 2017 2018 N 297 278 387 371 326 # 165 136 154 156 115 Chelsea CPI 76.30 70.50 62.50 65.60 65 N           #           Select a Comparable District CPI           N 70,607 69,766 69,954 70,340 70,187 # 55,436 54,851 54,359 55,415 54,500 State CPI 90 89.90 89.70 89.90 89.50		2014 2015 2016 2017 2018 N 276 256 366 341 286 # 162 132 129 118 101 Chelsea CPI 80.60 76.60 65.40 65.90 66.70 N           #           Select a Comparable District CPI           N 68,495 67,732 67,941 68,063 67,875 # 48,613 48,530 49,868 50,590 50,532 State CPI 87.90 88.20 88.90 89.40 89.30
Median student growth percentiles (SGP) (2014 - 2017)
2014 2015 2016 2017 N 230 201 164 231 Chelsea SGP 47.5 47.0 54.5 53.0 N         Select a Comparable District SGP N 61,694 61,218 60,642 60,857 State SGP 50.0 51.0 50.0 50.0		2014 2015 2016 2017 N 237 202 161 229 Chelsea SGP 30.0 25.0 26.0 25.0 N         Select a Comparable District SGP N 61,969 61,548 60,820 60,553 State SGP 50.0 50.0 50.0 50.0
Average student growth percentiles (SGP) (2018)
2018 N 221 Chelsea SGP 52.4 N   Select a Comparable District SGP N 61,055 State SGP 49.9		2018 N 218 Chelsea SGP 35.8 N   Select a Comparable District SGP N 60,804 State SGP 49.9
Percentage of students averaging 2 or above on open response items
2014 2015 2016 2017 2018 N 284 278 376 354 321 # 198 192 229 239 201 Chelsea % 70% 69% 61% 68% 63% N           #           Select a Comparable District %           N 69,602 68,882 69,027 69,366 69,660 # 57,985 59,820 57,875 59,445 57,706 State % 83% 87% 84% 86% 83%		2014 2015 2016 2017 2018 N 294 277 383 367 317 # 130 89 131 108 88 Chelsea % 44% 32% 34% 29% 28% N           #           Select a Comparable District %           N 69,736 68,887 69,032 69,430 69,305 # 50,147 45,240 45,508 46,783 45,707 State % 72% 66% 66% 67% 66%		2014 2015 2016 2017 2018 N           #           Chelsea % N           #           Select a Comparable District %           N           #           State %