Percentage of students scoring proficient or higher
2014 2015 2016 2017 2018 N 224 204 218 201 188 # 221 202 211 198 183 Groton-Dunstable % 99% 99% 97% 99% 97% 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 225 205 218 201 187 # 213 201 205 194 181 Groton-Dunstable % 94% 98% 94% 96% 97% 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 214 196 204 195 180 # 188 181 188 189 169 Groton-Dunstable % 88% 92% 92% 97% 94% 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 224 204 218 201 188 # 221 202 211 198 183 Groton-Dunstable CPI 99.70 99.80 99.30 99.80 99.10 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 225 205 218 201 187 # 213 201 205 194 181 Groton-Dunstable CPI 97.80 99.10 98.20 98.40 98.50 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 214 196 204 195 180 # 188 181 188 189 169 Groton-Dunstable CPI 95.30 97.70 97.40 99.60 97.90 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 208 194 203 185 Groton-Dunstable SGP 50.5 55.0 53.0 44.0 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 209 194 203 184 Groton-Dunstable SGP 66.0 72.0 68.0 54.5 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 174 Groton-Dunstable SGP 45.1 N   Select a Comparable District SGP N 61,055 State SGP 49.9		2018 N 173 Groton-Dunstable SGP 48.5 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 223 204 215 198 186 # 208 190 190 183 175 Groton-Dunstable % 93% 93% 88% 92% 94% 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 224 205 215 198 185 # 205 188 193 187 174 Groton-Dunstable % 92% 92% 90% 94% 94% 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           #           Groton-Dunstable % N           #           Select a Comparable District %           N           #           State %