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Boston Latin School
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2015 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 1
 Summary > 2015
2015 English Language Arts Proficiency Gap Narrowing
  0 10 20 30 40 50 60 70 80 90 100 Baseline CPI 2014 CPI 2015 CPI CPI Change 2015 Target 6 Year Goal CPI Percentile in School Type N PPI Points Rating
All studentsCPI = 99.3, Target = 99.8CPI = 99.3, Target = 99.8 99.7 99.8 99.3 -0.5 99.8 99.9 981112100Above Target
High needsCPI = 99.4, Target = 100CPI = 99.4, Target = 100 100.0 99.9 99.4 -0.5 100.0 100.0 98243100Above Target
Econ. Disadvantaged -- 99.8----209--
EL and Former EL -------22--
Students w/ disabilities -------24--
Amer. Ind. or Alaska Nat. ----------
AsianCPI = 99.6, Target = 100CPI = 99.6, Target = 100 100.0 99.9 99.6 -0.3 100.0 100.0 85317100Above Target
Afr. Amer./BlackCPI = 99.7, Target = 99.9CPI = 99.7, Target = 99.9 99.8 100.0 99.7 -0.3 99.9 99.9 9787100Above Target
Hispanic/LatinoCPI = 99.4, Target = 99.7CPI = 99.4, Target = 99.7 99.5 99.8 99.4 -0.4 99.7 99.8 97122100Above Target
Multi-race, Non-Hisp./Lat.CPI = 100, Target = 100CPI = 100, Target = 100 100.0 99.3 100.0 0.7 100.0 100.0 8340100Above Target
Nat. Haw. or Pacif. Isl. -------1--
WhiteCPI = 99, Target = 99.7CPI = 99, Target = 99.7 99.6 99.7 99.0 -0.7 99.7 99.8 97545100Above Target
Summary > 2015
2015 Mathematics Proficiency Gap Narrowing
  0 10 20 30 40 50 60 70 80 90 100 Baseline CPI 2014 CPI 2015 CPI CPI Change 2015 Target 6 Year Goal CPI Percentile in School Type N PPI Points Rating
All studentsCPI = 97.3, Target = 98.6CPI = 97.3, Target = 98.6CPI = 97.3, Target = 98.6 97.9 98.2 97.3 -0.9 98.6 99.0 981076100Above Target
High needsCPI = 97.8, Target = 98.9CPI = 97.8, Target = 98.9CPI = 97.8, Target = 98.9 98.4 98.3 97.8 -0.5 98.9 99.2 98236100Above Target
Econ. Disadvantaged -- 97.9----204--
EL and Former EL -------22--
Students w/ disabilities -------23--
Amer. Ind. or Alaska Nat. ----------
AsianCPI = 99.4, Target = 99.8CPI = 99.4, Target = 99.8 99.7 99.9 99.4 -0.5 99.8 99.9 85312100Above Target
Afr. Amer./BlackCPI = 97.5, Target = 97.9CPI = 97.5, Target = 97.9 96.8 98.0 97.5 -0.5 97.9 98.4 9780100Above Target
Hispanic/LatinoCPI = 96.7, Target = 97.9CPI = 96.7, Target = 97.9CPI = 96.7, Target = 97.9 96.8 95.8 96.7 0.9 97.9 98.4 94115100Above Target
Multi-race, Non-Hisp./Lat.CPI = 99.4, Target = 97.3CPI = 99.4, Target = 97.3CPI = 99.4, Target = 97.3 96.0 99.3 99.4 0.1 97.3 98.0 8341100Above Target
Nat. Haw. or Pacif. Isl. -------1--
WhiteCPI = 96, Target = 98.3CPI = 96, Target = 98.3CPI = 96, Target = 98.3 97.4 97.8 96.0 -1.8 98.3 98.7 98527100Above Target
Summary > 2015
2015 Science Proficiency Gap Narrowing
  0 10 20 30 40 50 60 70 80 90 100 Baseline CPI 2014 CPI 2015 CPI CPI Change 2015 Target 6 Year Goal CPI Percentile in School Type N PPI Points Rating
All studentsCPI = 89.6, Target = 90.9CPI = 89.6, Target = 90.9CPI = 89.6, Target = 90.9 86.3 89.3 89.6 0.3 90.9 93.2 92792100Above Target
High needsCPI = 88.3, Target = 89.7CPI = 88.3, Target = 89.7CPI = 88.3, Target = 89.7 84.5 89.2 88.3 -0.9 89.7 92.3 9615075On Target
Econ. Disadvantaged -- 89.1----131--
EL and Former EL -------5--
Students w/ disabilities -------16--
Amer. Ind. or Alaska Nat. ----------
AsianCPI = 92.5, Target = 92.4CPI = 92.5, Target = 92.4 88.6 93.3 92.5 -0.8 92.4 94.3 75224100Above Target
Afr. Amer./BlackCPI = 88.3, Target = 89.3CPI = 88.3, Target = 89.3 84.0 85.3 88.3 3.0 89.3 92.0 896075On Target
Hispanic/LatinoCPI = 87.7, Target = 86.7CPI = 87.7, Target = 86.7 80.0 85.9 87.7 1.8 86.7 90.0 948175On Target
Multi-race, Non-Hisp./Lat. -------27--
Nat. Haw. or Pacif. Isl. -------1--
WhiteCPI = 88.3, Target = 91CPI = 88.3, Target = 91CPI = 88.3, Target = 91 86.5 88.7 88.3 -0.4 91.0 93.3 7439975On Target
Summary > 2015
2015 English Language Arts Extra Credit
  Extra credit for increasing % Advanced (10% or more) Extra credit for decreasing % Warning/Failing (10% or more)
2014
% Advanced		 2015
% Advanced		 N PPI Points 2014
% Warning/Failing		 2015
% Warning/Failing		 N PPI Points
All students 35.6 49.1111225 0.0 0.0111225
High needs 36.8 46.124325 0.0 0.024325
Econ. Disadvantaged- 48.8209-- 0.0209-
EL and Former EL--22---22-
Students w/ disabilities--24---24-
Amer. Ind. or Alaska Nat.--------
Asian 48.1 55.831725 0.0 0.031725
Afr. Amer./Black 34.2 42.58725 0.0 0.08725
Hispanic/Latino 29.0 41.012225 0.0 0.012225
Multi-race, Non-Hisp./Lat. 30.6 57.54025 0.0 0.04025
Nat. Haw. or Pacif. Isl.--1---1-
White 30.3 47.354525 0.0 0.054525
Summary > 2015
2015 Mathematics Extra Credit
  Extra credit for increasing % Advanced (10% or more) Extra credit for decreasing % Warning/Failing (10% or more)
2014
% Advanced		 2015
% Advanced		 N PPI Points 2014
% Warning/Failing		 2015
% Warning/Failing		 N PPI Points
All students 63.6 62.610760 0.2 0.510760
High needs 68.4 63.62360 0.2 0.023625
Econ. Disadvantaged- 65.2204-- 0.0204-
EL and Former EL--22---22-
Students w/ disabilities--23---23-
Amer. Ind. or Alaska Nat.--------
Asian 82.6 76.03120 0.0 0.33120
Afr. Amer./Black 53.5 56.3800 0.0 0.08025
Hispanic/Latino 57.2 54.81150 0.0 0.011525
Multi-race, Non-Hisp./Lat. 55.6 63.44125 0.0 0.04125
Nat. Haw. or Pacif. Isl.--1---1-
White 56.4 57.35270 0.3 0.85270
Summary > 2015
2015 Science Extra Credit
  Extra credit for increasing % Advanced (10% or more) Extra credit for decreasing % Warning/Failing (10% or more)
2014
% Advanced		 2015
% Advanced		 N PPI Points 2014
% Warning/Failing		 2015
% Warning/Failing		 N PPI Points
All students 34.7 31.47920 1.4 1.67920
High needs 32.7 26.01500 0.7 2.71500
Econ. Disadvantaged- 25.2131-- 1.5131-
EL and Former EL--5---5-
Students w/ disabilities--16---16-
Amer. Ind. or Alaska Nat.--------
Asian 52.4 35.32240 0.0 0.42240
Afr. Amer./Black 24.1 23.3600 2.3 0.06025
Hispanic/Latino 19.2 27.28125 1.0 3.7810
Multi-race, Non-Hisp./Lat.--27---27-
Nat. Haw. or Pacif. Isl.--1---1-
White 30.4 31.63990 2.1 2.33990
Summary > 2015
2015 English Language Arts Growth
  0 10 20 30 40 50 60 70 80 90 100 2014 SGP 2015 SGP SGP Change 6 Year Goal Met Safe Harbor? N PPI Points Rating
All studentsSGP = 52, Target = 51SGP = 52, Target = 51 44.0 52.0 8.0 51.0No99375On Target
High needsSGP = 48, Target = 51SGP = 48, Target = 51SGP = 48, Target = 51 41.0 48.0 7.0 51.0No22950Below Target
Econ. Disadvantaged --- 51.0-199--
EL and Former EL --- 51.0-21--
Students w/ disabilities --- 51.0-21--
Amer. Ind. or Alaska Nat. --- 51.0----
AsianSGP = 56, Target = 51SGP = 56, Target = 51SGP = 56, Target = 51 53.0 56.0 3.0 51.0No29775On Target
Afr. Amer./BlackSGP = 51, Target = 51SGP = 51, Target = 51 46.5 51.0 4.5 51.0No7875On Target
Hispanic/LatinoSGP = 47, Target = 51SGP = 47, Target = 51SGP = 47, Target = 51 42.5 47.0 4.5 51.0No10450Below Target
Multi-race, Non-Hisp./Lat.SGP = 75, Target = 51SGP = 75, Target = 51SGP = 75, Target = 51 50.0 75.0 25.0 51.0No36100Above Target
Nat. Haw. or Pacif. Isl. --- 51.0-1--
WhiteSGP = 50, Target = 51SGP = 50, Target = 51 40.0 50.0 10.0 51.0No47775On Target
Summary > 2015
2015 Mathematics Growth
  0 10 20 30 40 50 60 70 80 90 100 2014 SGP 2015 SGP SGP Change 6 Year Goal Met Safe Harbor? N PPI Points Rating
All studentsSGP = 48, Target = 51SGP = 48, Target = 51SGP = 48, Target = 51 53.0 48.0 -5.0 51.0No95950Below Target
High needsSGP = 46, Target = 51SGP = 46, Target = 51SGP = 46, Target = 51 52.0 46.0 -6.0 51.0No22150Below Target
Econ. Disadvantaged --- 51.0-193--
EL and Former EL --- 51.0-21--
Students w/ disabilities --- 51.0-20--
Amer. Ind. or Alaska Nat. --- 51.0----
AsianSGP = 52.5, Target = 51SGP = 52.5, Target = 51SGP = 52.5, Target = 51 62.0 52.5 -9.5 51.0No28875On Target
Afr. Amer./BlackSGP = 36, Target = 51SGP = 36, Target = 51SGP = 36, Target = 51 52.5 36.0 -16.5 51.0No7225Below Target
Hispanic/LatinoSGP = 39, Target = 51SGP = 39, Target = 51SGP = 39, Target = 51 49.5 39.0 -10.5 51.0Yes9675On Target
Multi-race, Non-Hisp./Lat.SGP = 42, Target = 51SGP = 42, Target = 51SGP = 42, Target = 51 53.0 42.0 -11.0 51.0Yes3775On Target
Nat. Haw. or Pacif. Isl. --- 51.0-1--
WhiteSGP = 49, Target = 51SGP = 49, Target = 51SGP = 49, Target = 51 51.0 49.0 -2.0 51.0No46550Below Target
Summary > 2015
2015 Extra credit for English language proficiency growth
  2015 SGPA 2015 Target SGPA N Included PPI Points
All students-60--
High needs-60--
EL and Former EL-60--
Summary > 2015
2014 4-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 = 97.1, Target = 80Cohort Graduation Rate = 97.1, Target = 80Cohort Graduation Rate = 97.1, Target = 80 98.6 97.1 -1.5 80.0 90.0378100Above Target
High needsCohort Graduation Rate = 97.5, Target = 80Cohort Graduation Rate = 97.5, Target = 80Cohort Graduation Rate = 97.5, Target = 80 98.8 97.5 -1.3 80.0 90.0159100Above Target
Econ. Disadvantaged --- 80.0 90.0---
EL and Former EL --- 80.0 90.04--
Students w/ disabilities --- 80.0 90.06--
Amer. Ind. or Alaska Nat. --- 80.0 90.0---
AsianCohort Graduation Rate = 99.2, Target = 80Cohort Graduation Rate = 99.2, Target = 80Cohort Graduation Rate = 99.2, Target = 80 98.4 99.2 0.8 80.0 90.0121100Above Target
Afr. Amer./BlackCohort Graduation Rate = 91.7, Target = 80Cohort Graduation Rate = 91.7, Target = 80Cohort Graduation Rate = 91.7, Target = 80 100.0 91.7 -8.3 80.0 90.04875On Target
Hispanic/LatinoCohort Graduation Rate = 96.7, Target = 80Cohort Graduation Rate = 96.7, Target = 80Cohort Graduation Rate = 96.7, Target = 80 97.1 96.7 -0.4 80.0 90.030100Above Target
Multi-race, Non-Hisp./Lat. --- 80.0 90.012--
Nat. Haw. or Pacif. Isl. --- 80.0 90.01--
WhiteCohort Graduation Rate = 97, Target = 80Cohort Graduation Rate = 97, Target = 80Cohort Graduation Rate = 97, Target = 80 98.2 97.0 -1.2 80.0 90.0166100Above Target
Summary > 2015
2013 5-Year Cohort Graduation Rate
  0 10 20 30 40 50 60 70 80 90 100 2012 Rate 2013 Rate Change Annual Target 6 Year Goal N PPI Points Rating
All studentsCohort Graduation Rate = 98.9, Target = 85Cohort Graduation Rate = 98.9, Target = 85Cohort Graduation Rate = 98.9, Target = 85 99.5 98.9 -0.6 85.0 95.0366100Above Target
High needsCohort Graduation Rate = 98.8, Target = 85Cohort Graduation Rate = 98.8, Target = 85Cohort Graduation Rate = 98.8, Target = 85 99.4 98.8 -0.6 85.0 95.0164100Above 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 = 98.4, Target = 85Cohort Graduation Rate = 98.4, Target = 85Cohort Graduation Rate = 98.4, Target = 85 99.1 98.4 -0.7 85.0 95.0122100Above Target
Afr. Amer./BlackCohort Graduation Rate = 100, Target = 85Cohort Graduation Rate = 100, Target = 85Cohort Graduation Rate = 100, Target = 85 100.0 100.0 0.0 85.0 95.041100Above Target
Hispanic/Latino --- 85.0 95.021--
Multi-race, Non-Hisp./Lat. --- 85.0 95.011--
Nat. Haw. or Pacif. Isl. --- 85.0 95.0---
WhiteCohort Graduation Rate = 98.8, Target = 85Cohort Graduation Rate = 98.8, Target = 85Cohort Graduation Rate = 98.8, Target = 85 99.5 98.8 -0.7 85.0 95.0171100Above Target
Summary > 2015
2014 Annual Dropout Rate
  0  2  4  6  8  10 12  14 16  18 20 Baseline Rate 2013 Rate 2014 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 0.2 0.1 0.1 0.1 0.1911582100Above Target
High needsDropout Rate = 0.2, Target = 0 0.0 0.4 0.2 0.2 0.0 0.08857775On Target
Econ. Disadvantaged ----------
EL and Former EL -------1--
Students w/ disabilities -------16--
Amer. Ind. or Alaska Nat. ----------
AsianDropout Rate = 0, Target = 0 0.0 0.2 0.0 0.2 0.0 0.068490100Above Target
Afr. Amer./BlackDropout Rate = 0, Target = 0.3 0.5 0.6 0.0 0.6 0.3 0.382153100Above Target
Hispanic/LatinoDropout Rate = 0, Target = 0 0.0 0.0 0.0 0.0 0.0 0.086151100Above Target
Multi-race, Non-Hisp./Lat.Dropout Rate = 0, Target = 0 0.0 0.0 0.0 0.0 0.0 0.06945100Above Target
Nat. Haw. or Pacif. Isl. -------3--
WhiteDropout Rate = 0.3, Target = 0 0.0 0.1 0.3 -0.2 0.0 0.07774075On Target
Extra Credit for Reengaging Dropouts (2 or more)
  2014 Number of Dropouts Reengaged PPI Points
All students--
High needs--
Summary > 2015
2015 Assessment Participation
  English Language Arts Mathematics Science
Enrolled Assessed % Met Target (95%) Enrolled Assessed % Met Target (95%) Enrolled Assessed % Met Target (95%)
All students1206111392No1204107789No80279699Yes
High needs25424396Yes25423693No15115099Yes
Econ. Disadvantaged21620997Yes21620494No13213199Yes
EL and Former EL24---24---5---
Students w/ disabilities27---27---16---
Amer. Ind. or Alaska Nat.------------
Asian33031796Yes32831295Yes225225100Yes
Afr. Amer./Black898798Yes898090No616098Yes
Hispanic/Latino13512290No13511585No828199Yes
Multi-race, Non-Hisp./Lat.454089No454191No28---
Nat. Haw. or Pacif. Isl.1---1---1---
White60654690No60652887No40540299Yes

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