Percentage of students scoring proficient or higher
2014 2015 2016 2017 2018 N 299 266 294 330 304 # 296 262 289 324 292 Arlington High % 99% 98% 98% 98% 96% N           #           Select a Comparable School %           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 296 266 294 325 304 # 283 250 274 308 278 Arlington High % 95% 94% 93% 95% 91% N           #           Select a Comparable School %           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 289 256 282 316 299 # 254 223 249 275 261 Arlington High % 87% 87% 88% 88% 87% N           #           Select a Comparable School %           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 299 266 294 330 304 # 296 262 289 324 292 Arlington High CPI 99.70 99.40 99.10 99.30 98.40 N           #           Select a Comparable School 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 296 266 294 325 304 # 283 250 274 308 278 Arlington High CPI 98.50 97.50 97.40 97.50 96.30 N           #           Select a Comparable School 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 289 256 282 316 299 # 254 223 249 275 261 Arlington High CPI 95.80 95.40 95.40 95.30 95.10 N           #           Select a Comparable School 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 274 240 264 294 Arlington High SGP 55.0 49.0 43.5 47.5 N         Select a Comparable School 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 274 240 263 289 Arlington High SGP 61.0 50.5 49.0 55.0 N         Select a Comparable School 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 270 Arlington High SGP 57.2 N   Select a Comparable School SGP N 61,055 State SGP 49.9		2018 N 270 Arlington High SGP 56.2 N   Select a Comparable School 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 299 266 294 330 304 # 288 256 271 317 277 Arlington High % 96% 96% 92% 96% 91% N           #           Select a Comparable School %           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 296 266 294 325 304 # 277 233 253 290 259 Arlington High % 94% 88% 86% 89% 85% N           #           Select a Comparable School %           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           #           Arlington High % N           #           Select a Comparable School %           N           #           State %