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Boston Latin School
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2016 Accountability Data - Boston Latin
Organization Information
District:Boston (00350000)School type:Middle-High School or K-12
School:Boston Latin (00350560)Grades served:07,08,09,10,11,12
Region:Commissioner's DistrictsTitle I status:Title I School (SW)
Accountability and Assistance Level:Level 2
 Summary > 2016
2016 English Language Arts Proficiency Gap Narrowing
  0 10 20 30 40 50 60 70 80 90 100 Baseline CPI 2015 CPI 2016 CPI CPI Change 2016 Target 6 Year Goal CPI Percentile in School Type N PPI Points Rating
All studentsCPI = 99.6, Target = 99.8CPI = 99.6, Target = 99.8 99.7 99.3 99.6 0.3 99.8 99.9 981160100Above Target
High needsCPI = 99.9, Target = 100CPI = 99.9, Target = 100 100.0 99.4 99.9 0.5 100.0 100.0 98249100Above Target
Econ. DisadvantagedCPI = 100, Target = 99.8CPI = 100, Target = 99.8 99.8 99.8 100.0 0.2 99.8 99.9 98211100Above Target
EL and Former EL -------17--
Students w/ disabilities  96.9---- 98.5-30--
Amer. Ind. or Alaska Nat. -------2--
AsianCPI = 100, Target = 100CPI = 100, Target = 100 100.0 99.6 100.0 0.4 100.0 100.0 93330100Above Target
Afr. Amer./BlackCPI = 99.5, Target = 99.9CPI = 99.5, Target = 99.9 99.8 99.7 99.5 -0.2 99.9 99.9 97100100Above Target
Hispanic/LatinoCPI = 99.2, Target = 99.7CPI = 99.2, Target = 99.7 99.5 99.4 99.2 -0.2 99.7 99.8 94156100Above Target
Multi-race, Non-Hisp./Lat.CPI = 100, Target = 100CPI = 100, Target = 100 100.0 100.0 100.0 0.0 100.0 100.0 8742100Above Target
Nat. Haw. or Pacif. Isl. ----------
WhiteCPI = 99.5, Target = 99.8CPI = 99.5, Target = 99.8 99.6 99.0 99.5 0.5 99.8 99.8 97530100Above Target
Summary > 2016
2016 Mathematics Proficiency Gap Narrowing
  0 10 20 30 40 50 60 70 80 90 100 Baseline CPI 2015 CPI 2016 CPI CPI Change 2016 Target 6 Year Goal CPI Percentile in School Type N PPI Points Rating
All studentsCPI = 99.3, Target = 98.8CPI = 99.3, Target = 98.8 97.9 97.3 99.3 2.0 98.8 99.0 981151100Above Target
High needsCPI = 99.3, Target = 99.1CPI = 99.3, Target = 99.1 98.4 97.8 99.3 1.5 99.1 99.2 98249100Above Target
Econ. DisadvantagedCPI = 99.2, Target = 98.1CPI = 99.2, Target = 98.1CPI = 99.2, Target = 98.1 97.9 97.9 99.2 1.3 98.1 99.0 98211100Above Target
EL and Former EL -------17--
Students w/ disabilities  94.6---- 97.3-30--
Amer. Ind. or Alaska Nat. -------2--
AsianCPI = 99.7, Target = 99.8CPI = 99.7, Target = 99.8 99.7 99.4 99.7 0.3 99.8 99.9 93330100Above Target
Afr. Amer./BlackCPI = 99, Target = 98.1CPI = 99, Target = 98.1 96.8 97.5 99.0 1.5 98.1 98.4 97100100Above Target
Hispanic/LatinoCPI = 99.4, Target = 98.1CPI = 99.4, Target = 98.1CPI = 99.4, Target = 98.1 96.8 96.7 99.4 2.7 98.1 98.4 97156100Above Target
Multi-race, Non-Hisp./Lat.CPI = 100, Target = 97.7CPI = 100, Target = 97.7CPI = 100, Target = 97.7 96.0 99.4 100.0 0.6 97.7 98.0 8742100Above Target
Nat. Haw. or Pacif. Isl. ----------
WhiteCPI = 99, Target = 98.5CPI = 99, Target = 98.5 97.4 96.0 99.0 3.0 98.5 98.7 98521100Above Target
Summary > 2016
2016 Science Proficiency Gap Narrowing
  0 10 20 30 40 50 60 70 80 90 100 Baseline CPI 2015 CPI 2016 CPI CPI Change 2016 Target 6 Year Goal CPI Percentile in School Type N PPI Points Rating
All studentsCPI = 86.8, Target = 92CPI = 86.8, Target = 92CPI = 86.8, Target = 92 86.3 89.6 86.8 -2.8 92.0 93.2 8480775On Target
High needsCPI = 85.8, Target = 91CPI = 85.8, Target = 91CPI = 85.8, Target = 91 84.5 88.3 85.8 -2.5 91.0 92.3 9717975On Target
Econ. DisadvantagedCPI = 85.6, Target = 90CPI = 85.6, Target = 90CPI = 85.6, Target = 90 89.1 89.1 85.6 -3.5 90.0 94.6 9415475On Target
EL and Former EL -------6--
Students w/ disabilities -------23--
Amer. Ind. or Alaska Nat. ----------
AsianCPI = 88.4, Target = 93.4CPI = 88.4, Target = 93.4CPI = 88.4, Target = 93.4 88.6 92.5 88.4 -4.1 93.4 94.3 40216100Above Target
Afr. Amer./BlackCPI = 86.6, Target = 90.7CPI = 86.6, Target = 90.7CPI = 86.6, Target = 90.7 84.0 88.3 86.6 -1.7 90.7 92.0 948275On Target
Hispanic/LatinoCPI = 87.2, Target = 88.3CPI = 87.2, Target = 88.3CPI = 87.2, Target = 88.3 80.0 87.7 87.2 -0.5 88.3 90.0 9311975On Target
Multi-race, Non-Hisp./Lat.CPI = 86.2, Target = 91.4CPI = 86.2, Target = 91.4CPI = 86.2, Target = 91.4 88.5 91.7 86.2 -5.5 91.4 94.3 672975On Target
Nat. Haw. or Pacif. Isl. ----------
WhiteCPI = 85.9, Target = 92.1CPI = 85.9, Target = 92.1CPI = 85.9, Target = 92.1 86.5 88.3 85.9 -2.4 92.1 93.3 6736175On Target
Summary > 2016
2016 English Language Arts Extra Credit
  Extra credit for increasing % Advanced (10% or more) Extra credit for decreasing % Warning/Failing (10% or more)
2015
% Advanced		 2016
% Advanced		 N PPI Points 2015
% Warning/Failing		 2016
% Warning/Failing		 N PPI Points
All students 49.1 54.4116025 0.0 0.111600
High needs 46.1 56.224925 0.0 0.024925
Econ. Disadvantaged 48.8 57.821125 0.0 0.021125
EL and Former EL--17---17-
Students w/ disabilities--30---30-
Amer. Ind. or Alaska Nat.--2---2-
Asian 55.8 55.83300 0.0 0.033025
Afr. Amer./Black 42.5 55.010025 0.0 0.010025
Hispanic/Latino 41.0 57.115625 0.0 0.61560
Multi-race, Non-Hisp./Lat. 57.5 66.74225 0.0 0.04225
Nat. Haw. or Pacif. Isl.--------
White 47.3 51.95300 0.0 0.053025
Summary > 2016
2016 Mathematics Extra Credit
  Extra credit for increasing % Advanced (10% or more) Extra credit for decreasing % Warning/Failing (10% or more)
2015
% Advanced		 2016
% Advanced		 N PPI Points 2015
% Warning/Failing		 2016
% Warning/Failing		 N PPI Points
All students 62.6 78.5115125 0.5 0.1115125
High needs 63.6 79.924925 0.0 0.42490
Econ. Disadvantaged 65.2 81.521125 0.0 0.52110
EL and Former EL--17---17-
Students w/ disabilities--30---30-
Amer. Ind. or Alaska Nat.--2---2-
Asian 76.0 85.833025 0.3 0.033025
Afr. Amer./Black 56.3 79.010025 0.0 0.010025
Hispanic/Latino 54.8 73.715625 0.0 0.015625
Multi-race, Non-Hisp./Lat. 63.4 92.94225 0.0 0.04225
Nat. Haw. or Pacif. Isl.--------
White 57.3 73.952125 0.8 0.252125
Summary > 2016
2016 Science Extra Credit
  Extra credit for increasing % Advanced (10% or more) Extra credit for decreasing % Warning/Failing (10% or more)
2015
% Advanced		 2016
% Advanced		 N PPI Points 2015
% Warning/Failing		 2016
% Warning/Failing		 N PPI Points
All students 31.4 28.48070 1.6 2.08070
High needs 26.0 25.71790 2.7 1.117925
Econ. Disadvantaged 25.2 27.915425 1.5 0.615425
EL and Former EL--6---6-
Students w/ disabilities--23---23-
Amer. Ind. or Alaska Nat.--------
Asian 35.3 35.62160 0.4 0.92160
Afr. Amer./Black 23.3 28.08225 0.0 3.7820
Hispanic/Latino 27.2 27.71190 3.7 2.511925
Multi-race, Non-Hisp./Lat. 29.6 27.6290 0.0 0.02925
Nat. Haw. or Pacif. Isl.--------
White 31.6 24.43610 2.3 2.23610
Summary > 2016
2016 English Language Arts Growth
  0 10 20 30 40 50 60 70 80 90 100 2015 SGP 2016 SGP SGP Change 6 Year Goal Met Safe Harbor? N PPI Points Rating
All studentsSGP = 49, Target = 51SGP = 49, Target = 51SGP = 49, Target = 51 52.0 49.0 -3.0 51.0Yes101575On Target
High needsSGP = 49, Target = 51SGP = 49, Target = 51SGP = 49, Target = 51 48.0 49.0 1.0 51.0Yes22975On Target
Econ. DisadvantagedSGP = 52, Target = 51SGP = 52, Target = 51 49.0 52.0 3.0 51.0Yes19975On Target
EL and Former EL --- 51.0-13--
Students w/ disabilities --- 51.0-24--
Amer. Ind. or Alaska Nat. --- 51.0-2--
AsianSGP = 49, Target = 51SGP = 49, Target = 51SGP = 49, Target = 51 56.0 49.0 -7.0 51.0Yes30275On Target
Afr. Amer./BlackSGP = 49, Target = 51SGP = 49, Target = 51SGP = 49, Target = 51 51.0 49.0 -2.0 51.0No9150Below Target
Hispanic/LatinoSGP = 46, Target = 51SGP = 46, Target = 51SGP = 46, Target = 51 47.0 46.0 -1.0 51.0Yes13675On Target
Multi-race, Non-Hisp./Lat.SGP = 60.5, Target = 51SGP = 60.5, Target = 51SGP = 60.5, Target = 51 75.0 60.5 -14.5 51.0No38100Above Target
Nat. Haw. or Pacif. Isl. --- 51.0----
WhiteSGP = 47, Target = 51SGP = 47, Target = 51SGP = 47, Target = 51 50.0 47.0 -3.0 51.0Yes44675On Target
Summary > 2016
2016 Mathematics Growth
  0 10 20 30 40 50 60 70 80 90 100 2015 SGP 2016 SGP SGP Change 6 Year Goal Met Safe Harbor? N PPI Points Rating
All studentsSGP = 54, Target = 51SGP = 54, Target = 51SGP = 54, Target = 51 48.0 54.0 6.0 51.0Yes98175On Target
High needsSGP = 48, Target = 51SGP = 48, Target = 51SGP = 48, Target = 51 46.0 48.0 2.0 51.0Yes22775On Target
Econ. DisadvantagedSGP = 48, Target = 51SGP = 48, Target = 51SGP = 48, Target = 51 46.0 48.0 2.0 51.0Yes19975On Target
EL and Former EL --- 51.0-11--
Students w/ disabilities --- 51.0-24--
Amer. Ind. or Alaska Nat. --- 51.0-2--
AsianSGP = 52.5, Target = 51SGP = 52.5, Target = 51SGP = 52.5, Target = 51 52.5 52.5 0.0 51.0Yes29075On Target
Afr. Amer./BlackSGP = 50, Target = 51SGP = 50, Target = 51 36.0 50.0 14.0 51.0Yes8975On Target
Hispanic/LatinoSGP = 46.5, Target = 51SGP = 46.5, Target = 51SGP = 46.5, Target = 51 39.0 46.5 7.5 51.0Yes13275On Target
Multi-race, Non-Hisp./Lat.SGP = 59, Target = 51SGP = 59, Target = 51SGP = 59, Target = 51 42.0 59.0 17.0 51.0Yes36100Above Target
Nat. Haw. or Pacif. Isl. --- 51.0----
WhiteSGP = 56, Target = 51SGP = 56, Target = 51SGP = 56, Target = 51 49.0 56.0 7.0 51.0Yes43275On Target
Summary > 2016
2016 Extra credit for English language proficiency growth
  2016 SGPA 2016 Target SGPA N Included PPI Points
All students- 60.01-
High needs- 60.01-
EL and Former EL- 60.01-
Summary > 2016
2015 4-Year Cohort Graduation Rate
  0 10 20 30 40 50 60 70 80 90 100 2014 Rate 2015 Rate Change Annual Target 6 Year Goal N PPI Points Rating
All studentsCohort Graduation Rate = 99.1, Target = 80Cohort Graduation Rate = 99.1, Target = 80Cohort Graduation Rate = 99.1, Target = 80 97.1 99.1 2.0 80.0 90.0352100Above Target
High needsCohort Graduation Rate = 100, Target = 80Cohort Graduation Rate = 100, Target = 80Cohort Graduation Rate = 100, Target = 80 97.5 100.0 2.5 80.0 90.0142100Above Target
Econ. Disadvantaged --- 80.0 90.0---
EL and Former EL --- 80.0 90.01--
Students w/ disabilities --- 80.0 90.05--
Amer. Ind. or Alaska Nat. --- 80.0 90.0---
AsianCohort Graduation Rate = 100, Target = 80Cohort Graduation Rate = 100, Target = 80Cohort Graduation Rate = 100, Target = 80 99.2 100.0 0.8 80.0 90.0108100Above Target
Afr. Amer./BlackCohort Graduation Rate = 96.4, Target = 80Cohort Graduation Rate = 96.4, Target = 80Cohort Graduation Rate = 96.4, Target = 80 91.7 96.4 4.7 80.0 90.028100Above Target
Hispanic/LatinoCohort Graduation Rate = 100, Target = 80Cohort Graduation Rate = 100, Target = 80Cohort Graduation Rate = 100, Target = 80 96.7 100.0 3.3 80.0 90.033100Above Target
Multi-race, Non-Hisp./Lat. --- 80.0 90.012--
Nat. Haw. or Pacif. Isl. --- 80.0 90.0---
WhiteCohort Graduation Rate = 98.8, Target = 80Cohort Graduation Rate = 98.8, Target = 80Cohort Graduation Rate = 98.8, Target = 80 97.0 98.8 1.8 80.0 90.0171100Above Target
Summary > 2016
2014 5-Year Cohort Graduation Rate
  0 10 20 30 40 50 60 70 80 90 100 2013 Rate 2014 Rate Change Annual Target 6 Year Goal N PPI Points Rating
All studentsCohort Graduation Rate = 98.7, Target = 85Cohort Graduation Rate = 98.7, Target = 85Cohort Graduation Rate = 98.7, Target = 85 98.9 98.7 -0.2 85.0 95.0378100Above Target
High needsCohort Graduation Rate = 98.1, Target = 85Cohort Graduation Rate = 98.1, Target = 85Cohort Graduation Rate = 98.1, Target = 85 98.8 98.1 -0.7 85.0 95.0159100Above Target
Econ. Disadvantaged --- 85.0 95.0---
EL and Former EL --- 85.0 95.04--
Students w/ disabilities --- 85.0 95.06--
Amer. Ind. or Alaska Nat. --- 85.0 95.0---
AsianCohort Graduation Rate = 99.2, Target = 85Cohort Graduation Rate = 99.2, Target = 85Cohort Graduation Rate = 99.2, Target = 85 98.4 99.2 0.8 85.0 95.0121100Above Target
Afr. Amer./BlackCohort Graduation Rate = 97.9, Target = 85Cohort Graduation Rate = 97.9, Target = 85Cohort Graduation Rate = 97.9, Target = 85 100.0 97.9 -2.1 85.0 95.048100Above Target
Hispanic/LatinoCohort Graduation Rate = 100, Target = 85Cohort Graduation Rate = 100, Target = 85Cohort Graduation Rate = 100, Target = 85 100.0 100.0 0.0 85.0 95.030100Above Target
Multi-race, Non-Hisp./Lat. --- 85.0 95.012--
Nat. Haw. or Pacif. Isl. --- 85.0 95.01--
WhiteCohort Graduation Rate = 98.2, Target = 85Cohort Graduation Rate = 98.2, Target = 85Cohort Graduation Rate = 98.2, Target = 85 98.8 98.2 -0.6 85.0 95.0166100Above Target
Summary > 2016
2015 Annual Dropout Rate
  0  2  4  6  8  10 12  14 16  18 20 Baseline Rate 2014 Rate 2015 Rate Change Annual Target 6 Year Goal Dropout Percentile in School Type N PPI Points Rating
All studentsDropout Rate = 0.1, Target = 0.1 0.1 0.1 0.1 0.0 0.1 0.1881621100Above Target
High needsDropout Rate = 0, Target = 0 0.0 0.2 0.0 0.2 0.0 0.091264100Above Target
Econ. Disadvantaged  0.0---- 0.0-241--
EL and Former EL ----------
Students w/ disabilities -------21--
Amer. Ind. or Alaska Nat. ----------
AsianDropout Rate = 0, Target = 0 0.0 0.0 0.0 0.0 0.0 0.067476100Above Target
Afr. Amer./BlackDropout Rate = 0, Target = 0.3 0.5 0.0 0.0 0.0 0.3 0.382164100Above Target
Hispanic/LatinoDropout Rate = 0.5, Target = 0 0.0 0.0 0.5 -0.5 0.0 0.06919325No Change
Multi-race, Non-Hisp./Lat.Dropout Rate = 0, Target = 0 0.0 0.0 0.0 0.0 0.0 0.07148100Above Target
Nat. Haw. or Pacif. Isl. -------2--
WhiteDropout Rate = 0.1, Target = 0 0.0 0.3 0.1 0.2 0.0 0.083738100Above Target
Extra Credit for Reengaging Dropouts (2 or more)
  2015 Number of Dropouts Reengaged PPI Points
All students--
High needs--
Summary > 2016
2016 Assessment Participation
  English Language Arts Mathematics Science
Enrolled Assessed % Met Target (95%) Enrolled Assessed % Met Target (95%) Enrolled Assessed % Met Target (95%)
All students1210116196Yes1210115295Yes82080798Yes
High needs25724997Yes25724997Yes18017999Yes
Econ. Disadvantaged21821197Yes21821197Yes154154100Yes
EL and Former EL17---17---6---
Students w/ disabilities313097Yes313097Yes24---
Amer. Ind. or Alaska Nat.2---2-------
Asian33833098Yes33833098Yes21821699Yes
Afr. Amer./Black10310097Yes10310097Yes8282100Yes
Hispanic/Latino16115697Yes16115697Yes12011999Yes
Multi-race, Non-Hisp./Lat.444295Yes444295Yes2929100Yes
Nat. Haw. or Pacif. Isl.------------
White56253194No56252293No37136197Yes

NOTE: In 2016, assessment participation was calculated two ways: First, the 2016 participation rate for each subgroup in each subject area test was calculated. If the actual 2016 participation rate was lower than 95 percent for any group in any subject, that rate was compared to the average of the most recent two years of assessment participation data for that group and subject. The higher of the two resulting rates was factored into the assignment of the school or district's 2016 accountability and assistance level.

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