Percentage of students scoring proficient or higher
2014 2015 2016 2017 2018 N 291 307 261 330 315 # 238 262 222 289 266 Somerville % 81% 86% 85% 88% 85% 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 292 312 263 327 317 # 199 227 176 242 215 Somerville % 68% 73% 67% 74% 68% 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 276 282 239 297 290 # 186 197 161 214 194 Somerville % 67% 70% 67% 72% 67% 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 291 307 261 330 315 # 238 262 222 289 266 Somerville CPI 92.20 93.90 92.30 95.20 91.80 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 292 312 263 327 317 # 199 227 176 242 215 Somerville CPI 85 86.70 82.90 87.50 84 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 276 282 239 297 290 # 186 197 161 214 194 Somerville CPI 86.40 87.40 85 90.20 86.70 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 228 248 199 258 Somerville SGP 74.5 77.0 76.0 68.0 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 226 251 200 256 Somerville SGP 65.0 68.0 69.0 63.5 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 246 Somerville SGP 61.9 N   Select a Comparable District SGP N 61,055 State SGP 49.9		2018 N 245 Somerville SGP 55.3 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 289 302 257 324 313 # 250 265 220 294 256 Somerville % 87% 88% 86% 91% 82% 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 289 306 256 321 315 # 163 183 145 204 178 Somerville % 56% 60% 57% 64% 57% 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           #           Somerville % N           #           Select a Comparable District %           N           #           State %