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Boston Latin Academy
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2019 Official Accountability Report - Boston Latin Academy
Organization Information
DISTRICT NAME
Boston (00350000)		TITLE I STATUS
Title I School
SCHOOL
Boston Latin Academy (00350545)		GRADES SERVED
07,08,09,10,11,12
REGION
Coastal		FEDERAL DESIGNATION
-

Accountability Information

Overall classificationNot requiring assistance or intervention
Reason for classification
Meeting or exceeding targets
Progress toward improvement targetsAccountability percentile
77% - Meeting or exceeding targets84

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage65%85%
Weight40%60%
Cumulative criterion-referenced target percentage
(2018 x 40%) + (2019 x 60%)		77%
Meeting or exceeding targets

2019 Points awarded

2019 Progress toward improvement targets
Indicator All students
(Non-high school grades)		 Lowest performing students
(Non-high school grades)		 All students
(High school grades)		 Lowest performing students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-24-44-44-
Mathematics achievement44-34-44-44-
Science achievement34----44-44-
Achievement total111267.55867.5121247.5121267.5
GrowthEnglish language arts growth24-14-34-14-
Mathematics growth24-24-44-44-
Growth total4822.53822.57822.55822.5
High school completionFour-year cohort graduation rate------34----
Extended engagement rate------34----
Annual dropout rate------34----
High school completion total------91220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total------------
Additional indicatorsChronic absenteeism14-04-44-44-
Advanced coursework completion------44----
Additional indicators total1410.00410.08810.04410.0
Weighted total8.410.3-4.17.6-9.910.7-9.610.3-
Percentage of possible points 82%-54%-93%-93%-
Percentage of possible points by gradespan68%
Weight of non-high school results:33%		93%
Weight of high school results:67%
2019 Annual criterion-referenced target percentage85%

2018 Points awarded

2018 Progress toward improvement targets
Indicator All students
(Non-high school grades)		 Lowest performing students
(Non-high school grades)		 All students
(High school grades)		 Lowest performing students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-04-44-44-
Mathematics achievement24-04-44-44-
Science achievement04----44-34-
Achievement total61267.50867.5121247.5111267.5
GrowthEnglish language arts growth24-14-14-04-
Mathematics growth14-14-24-14-
Growth total3822.52822.53822.51822.5
High school completionFour-year cohort graduation rate------34----
Extended engagement rate------34----
Annual dropout rate------44----
High school completion total------101220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total------------
Additional indicatorsChronic absenteeism34-04-34-24-
Advanced coursework completion------44----
Additional indicators total3410.00410.07810.02410.0
Weighted total5.010.3-0.57.6-9.110.7-7.910.3-
Percentage of possible points 49%-7%-85%-77%-
Percentage of possible points by gradespan28%
Weight of non-high school results:30%		81%
Weight of high school results:70%
2018 Annual criterion-referenced target percentage65%

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage70%86%
Weight40%60%
Cumulative criterion-referenced target percentage
(2018 x 40%) + (2019 x 60%)		80%
Meeting or exceeding targets

2019 Points awarded

2019 Progress toward improvement targets
Indicator High needs Subgroup
(Non-high school grades)		 High needs Subgroup
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-44-
Mathematics achievement44-44-
Science achievement34-44-
Achievement total111267.5121247.5
GrowthEnglish language arts growth24-34-
Mathematics growth24-44-
Growth total4822.57822.5
High school completionFour-year cohort graduation rate---24-
Extended engagement rate---34-
Annual dropout rate---34-
High school completion total---81220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism04-24-
Advanced coursework completion---44-
Additional indicators total0410.06810.0
Weighted total8.310.3-9.510.7-
Percentage of possible points 81%-89%-
Percentage of possible points by gradespan81%
Weight of non-high school results:33%		89%
Weight of high school results:67%
2019 Annual criterion-referenced target percentage86%

2018 Points awarded

2018 Progress toward improvement targets
Indicator High needs Subgroup
(Non-high school grades)		 High needs Subgroup
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement34-44-
Mathematics achievement34-44-
Science achievement04-44-
Achievement total61267.5121247.5
GrowthEnglish language arts growth24-14-
Mathematics growth14-24-
Growth total3822.53822.5
High school completionFour-year cohort graduation rate---04-
Extended engagement rate---44-
Annual dropout rate---44-
High school completion total---81220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism24-34-
Advanced coursework completion---34-
Additional indicators total2410.06810.0
Weighted total4.910.3-8.610.7-
Percentage of possible points 48%-80%-
Percentage of possible points by gradespan48%
Weight of non-high school results:30%		80%
Weight of high school results:70%
2018 Annual criterion-referenced target percentage70%

Subgroup percentile

This group's overall performance relative to the performance of the same subgroup in schools serving similar grades
89

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 506.9 508.8 1.9 507.9 5654Exceeded Target
Lowest Performing 490.0 492.5 2.5 494.1 752Improved Below Target
High needs 506.1 507.9 1.8 507.1 2574Exceeded Target
Econ. Disadvantaged 506.2 507.9 1.7 507.2 1914Exceeded Target
EL and Former EL 505.6 509.6 4.0 506.6 1174Exceeded Target
Students w/ disabilities---- 17--
Amer. Ind. or Alaska Nat.-------
Asian 506.4 509.5 3.1 507.4 984Exceeded Target
Afr. Amer./Black 509.0 509.9 0.9 510.2 1273Met Target
Hispanic/Latino 505.6 510.5 4.9 506.7 1384Exceeded Target
Multi-race, Non-Hisp./Lat.---- 19--
Nat. Haw. or Pacif. Isl.---- 1--
White 506.4 507.3 0.9 507.4 1823Met Target

English language arts achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 99.9 100.0 0.1 100.0 3504Exceeded Target
Lowest Performing 99.7 100.0 0.3 100.0 914Exceeded Target
High needs 100.0 100.0 0.0 100.0 1654Exceeded Target
Econ. Disadvantaged 100.0 100.0 0.0 100.0 1454Exceeded Target
EL and Former EL 100.0 100.0 0.0 100.0 274Exceeded Target
Students w/ disabilities---- 15--
Amer. Ind. or Alaska Nat.---- 1--
Asian 100.0 100.0 0.0 100.0 824Exceeded Target
Afr. Amer./Black 100.0 100.0 0.0 100.0 684Exceeded Target
Hispanic/Latino 100.0 100.0 0.0 100.0 974Exceeded Target
Multi-race, Non-Hisp./Lat.---- 8--
Nat. Haw. or Pacif. Isl.---- 1--
White 99.7 100.0 0.3 100.0 934Exceeded Target

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 506.4 508.3 1.9 507.4 5654Exceeded Target
Lowest Performing 495.2 496.8 1.6 498.4 753Met Target
High needs 506.3 508.2 1.9 507.6 2574Exceeded Target
Econ. Disadvantaged 505.7 508.7 3.0 507.2 1914Exceeded Target
EL and Former EL 509.4 510.7 1.3 510.9 1173Met Target
Students w/ disabilities---- 17--
Amer. Ind. or Alaska Nat.-------
Asian 511.9 514.1 2.2 514.0 984Exceeded Target
Afr. Amer./Black 504.0 506.5 2.5 505.5 1274Exceeded Target
Hispanic/Latino 504.0 508.5 4.5 505.9 1384Exceeded Target
Multi-race, Non-Hisp./Lat.---- 19--
Nat. Haw. or Pacif. Isl.---- 1--
White 505.9 506.1 0.2 506.9 1822Improved Below Target

Mathematics achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 99.8 99.9 0.1 100.0 3494Exceeded Target
Lowest Performing 99.3 99.4 0.1 100.0 904Exceeded Target
High needs 99.8 99.7 -0.1 100.0 1644Exceeded Target
Econ. Disadvantaged 100.0 99.7 -0.3 100.0 1444Exceeded Target
EL and Former EL 100.0 100.0 0.0 100.0 274Exceeded Target
Students w/ disabilities---- 15--
Amer. Ind. or Alaska Nat.---- 1--
Asian 100.0 100.0 0.0 100.0 814Exceeded Target
Afr. Amer./Black 100.0 99.6 -0.4 100.0 684Exceeded Target
Hispanic/Latino 99.6 99.7 0.1 100.0 974Exceeded Target
Multi-race, Non-Hisp./Lat.---- 8--
Nat. Haw. or Pacif. Isl.---- 1--
White 99.7 100.0 0.3 100.0 934Exceeded Target

Science achievement - MCAS Composite Performance Index (CPI) - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 68.8 69.9 1.1 71.0 2883Met Target
Lowest Performing-------
High needs 65.0 69.2 4.2 68.3 1203Met Target
Econ. Disadvantaged 63.4 70.9 7.5 66.6 924Exceeded Target
EL and Former EL 64.1 69.6 5.5 67.2 514Exceeded Target
Students w/ disabilities---- 11--
Amer. Ind. or Alaska Nat.-------
Asian 70.6 74.1 3.5 72.7 574Exceeded Target
Afr. Amer./Black 69.1 64.1 -5.0 71.3 620Declined
Hispanic/Latino 62.9 67.9 5.0 67.6 673Met Target
Multi-race, Non-Hisp./Lat.---- 13--
Nat. Haw. or Pacif. Isl.---- 1--
White 69.9 71.9 2.0 71.8 883Met Target

Science achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 97.5 98.9 1.4 99.2 3484Exceeded Target
Lowest Performing 91.0 97.0 6.0 93.3 914Exceeded Target
High needs 97.5 98.6 1.1 100.0 1654Exceeded Target
Econ. Disadvantaged 97.5 98.6 1.1 99.5 1454Exceeded Target
EL and Former EL 97.6 100.0 2.4 100.0 274Exceeded Target
Students w/ disabilities---- 15--
Amer. Ind. or Alaska Nat.---- 1--
Asian 99.6 98.8 -0.8 100.0 824Exceeded Target
Afr. Amer./Black 97.4 99.3 1.9 99.9 684Exceeded Target
Hispanic/Latino 95.7 98.4 2.7 99.3 954Exceeded Target
Multi-race, Non-Hisp./Lat.---- 8--
Nat. Haw. or Pacif. Isl.---- 1--
White 97.5 99.2 1.7 99.2 934Exceeded Target

English language arts growth - Non-high school
Group 2019 Mean SGP N Points Reason
All Students 41.9 5072Typical Growth - Low
Lowest Performing 38.5 681Low Growth
High needs 42.2 2352Typical Growth - Low
Econ. Disadvantaged 41.7 1722Typical Growth - Low
EL and Former EL 46.6 1152Typical Growth - Low
Students w/ disabilities- 12--
Amer. Ind. or Alaska Nat.----
Asian 46.1 942Typical Growth - Low
Afr. Amer./Black 41.5 1122Typical Growth - Low
Hispanic/Latino 41.2 1282Typical Growth - Low
Multi-race, Non-Hisp./Lat.- 15--
Nat. Haw. or Pacif. Isl.- 1--
White 41.8 1572Typical Growth - Low

English language arts growth - High school
Group 2019 Mean SGP N Points Reason
All Students 58.9 3343Typical Growth - High
Lowest Performing 38.3 831Low Growth
High needs 56.5 1583Typical Growth - High
Econ. Disadvantaged 56.2 1393Typical Growth - High
EL and Former EL 45.9 272Typical Growth - Low
Students w/ disabilities- 12--
Amer. Ind. or Alaska Nat.- 1--
Asian 62.2 804Exceeded Typical Growth
Afr. Amer./Black 54.9 633Typical Growth - High
Hispanic/Latino 55.9 933Typical Growth - High
Multi-race, Non-Hisp./Lat.- 8--
Nat. Haw. or Pacif. Isl.- 1--
White 61.9 884Exceeded Typical Growth

Mathematics growth - Non-high school
Group 2019 Mean SGP N Points Reason
All Students 41.8 5062Typical Growth - Low
Lowest Performing 43.2 682Typical Growth - Low
High needs 40.8 2342Typical Growth - Low
Econ. Disadvantaged 43.4 1712Typical Growth - Low
EL and Former EL 38.2 1151Low Growth
Students w/ disabilities- 12--
Amer. Ind. or Alaska Nat.----
Asian 43.7 942Typical Growth - Low
Afr. Amer./Black 39.3 1111Low Growth
Hispanic/Latino 43.3 1282Typical Growth - Low
Multi-race, Non-Hisp./Lat.- 15--
Nat. Haw. or Pacif. Isl.- 1--
White 40.5 1572Typical Growth - Low

Mathematics growth - High school
Group 2019 Mean SGP N Points Reason
All Students 66.9 3334Exceeded Typical Growth
Lowest Performing 60.4 814Exceeded Typical Growth
High needs 65.6 1574Exceeded Typical Growth
Econ. Disadvantaged 66.5 1384Exceeded Typical Growth
EL and Former EL 52.7 273Typical Growth - High
Students w/ disabilities- 12--
Amer. Ind. or Alaska Nat.- 1--
Asian 72.9 794Exceeded Typical Growth
Afr. Amer./Black 64.7 634Exceeded Typical Growth
Hispanic/Latino 61.3 924Exceeded Typical Growth
Multi-race, Non-Hisp./Lat.- 8--
Nat. Haw. or Pacif. Isl.- 1--
White 70.4 894Exceeded Typical Growth

Four-year cohort graduation rate - High school
Group 2017 Rate (%) 2018 Rate (%) Change Target (%) N Points Reason
All Students 95.3 96.5 1.2 96.4 2843Met Target
Lowest Performing-------
High needs 94.6 94.9 0.3 97.8 1182Improved Below Target
Econ. Disadvantaged 94.9 94.6 -0.3 98.5 1121No Change
EL and Former EL---- 1--
Students w/ disabilities---- 6--
Amer. Ind. or Alaska Nat.---- 1--
Asian 100.0 95.5 -4.5 100.0 663Met Target
Afr. Amer./Black 93.2 97.6 4.4 94.3 824Exceeded Target
Hispanic/Latino 94.2 94.3 0.1 95.3 532Improved Below Target
Multi-race, Non-Hisp./Lat.---- 4--
Nat. Haw. or Pacif. Isl.---- 1--
White 94.4 97.4 3.0 95.8 774Exceeded Target

Extended engagement rate - High school
Group 2016 Rate (%) 2017 Rate (%) Change Target (%) N Points Reason
All Students 98.8 97.8 -1.0 99.8 2763Met Target
Lowest Performing-------
High needs 99.4 97.3 -2.1 100.0 1853Met Target
Econ. Disadvantaged 99.4 97.2 -2.2 100.0 1773Met Target
EL and Former EL---- 2--
Students w/ disabilities---- 10--
Amer. Ind. or Alaska Nat.---- 1--
Asian 100.0 100.0 0.0 100.0 544Exceeded Target
Afr. Amer./Black 97.5 95.9 -1.6 98.5 743Met Target
Hispanic/Latino 98.1 97.1 -1.0 99.1 693Met Target
Multi-race, Non-Hisp./Lat.---- 7--
Nat. Haw. or Pacif. Isl.-------
White 100.0 98.6 -1.4 100.0 713Met Target

Annual dropout rate - High school
Group 2017 Rate (%) 2018 Rate (%) Change Target (%) N Points Reason
All Students 0.1 0.3 0.2 1.0 1,2243Met Target
Lowest Performing-------
High needs 0.0 0.2 0.2 1.0 4793Met Target
Econ. Disadvantaged 0.0 0.2 0.2 1.0 4263Met Target
EL and Former EL---- 6--
Students w/ disabilities---- 50--
Amer. Ind. or Alaska Nat.---- 5--
Asian 0.0 0.4 0.4 1.0 2853Met Target
Afr. Amer./Black 0.0 0.0 0.0 1.0 2714Exceeded Target
Hispanic/Latino 0.0 0.3 0.3 1.0 2893Met Target
Multi-race, Non-Hisp./Lat.---- 30--
Nat. Haw. or Pacif. Isl.---- 2--
White 0.3 0.6 0.3 1.0 3423Met Target

Progress toward attaining English language proficiency - Non-high school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students-------
Lowest Performing-------
High needs-------
Econ. Disadvantaged-------
EL and Former EL-------
Students w/ disabilities-------
Amer. Ind. or Alaska Nat.-------
Asian-------
Afr. Amer./Black-------
Hispanic/Latino-------
Multi-race, Non-Hisp./Lat.-------
Nat. Haw. or Pacif. Isl.-------
White-------

Progress toward attaining English language proficiency - High school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students-------
Lowest Performing-------
High needs-------
Econ. Disadvantaged-------
EL and Former EL-------
Students w/ disabilities-------
Amer. Ind. or Alaska Nat.-------
Asian-------
Afr. Amer./Black-------
Hispanic/Latino-------
Multi-race, Non-Hisp./Lat.-------
Nat. Haw. or Pacif. Isl.-------
White-------

Chronic absenteeism - Non-high school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 6.3 6.8 0.5 5.2 5771No Change
Lowest Performing 5.3 10.7 5.4 2.0 750Declined
High needs 5.8 6.8 1.0 3.7 2630Declined
Econ. Disadvantaged 7.4 8.8 1.4 3.1 1700Declined
EL and Former EL 1.5 4.2 2.7 0.0 1203Met Target
Students w/ disabilities---- 19--
Amer. Ind. or Alaska Nat.-------
Asian 1.9 2.0 0.1 0.0 984Exceeded Target
Afr. Amer./Black 5.1 4.7 -0.4 2.1 1283Met Target
Hispanic/Latino 3.9 5.7 1.8 0.0 1400Declined
Multi-race, Non-Hisp./Lat.---- 19--
Nat. Haw. or Pacif. Isl.---- 1--
White 11.1 10.5 -0.6 9.9 1912Improved Below Target

Chronic absenteeism - High school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 14.7 13.0 -1.7 13.6 1,1784Exceeded Target
Lowest Performing 18.1 9.9 -8.2 14.1 914Exceeded Target
High needs 17.7 15.3 -2.4 14.6 5572Improved Below Target
Econ. Disadvantaged 17.3 16.4 -0.9 13.1 3902Improved Below Target
EL and Former EL 4.9 7.1 2.2 0.4 843Met Target
Students w/ disabilities---- 59--
Amer. Ind. or Alaska Nat.---- 4--
Asian 8.1 5.5 -2.6 6.2 2714Exceeded Target
Afr. Amer./Black 19.2 13.8 -5.4 15.9 2404Exceeded Target
Hispanic/Latino 17.3 16.0 -1.3 13.3 3062Improved Below Target
Multi-race, Non-Hisp./Lat.---- 37--
Nat. Haw. or Pacif. Isl.---- 1--
White 14.2 14.7 0.5 12.8 3191No Change

Advanced coursework completion - High school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 96.9 96.5 -0.4 99.6 5204Exceeded Target
Lowest Performing-------
High needs 97.2 95.7 -1.5 100.0 2334Exceeded Target
Econ. Disadvantaged 97.4 96.0 -1.4 100.0 1994Exceeded Target
EL and Former EL---- 17--
Students w/ disabilities---- 29--
Amer. Ind. or Alaska Nat.---- 3--
Asian 97.7 99.2 1.5 100.0 1324Exceeded Target
Afr. Amer./Black 96.5 96.9 0.4 100.0 984Exceeded Target
Hispanic/Latino 96.0 94.4 -1.6 100.0 1254Exceeded Target
Multi-race, Non-Hisp./Lat.---- 17--
Nat. Haw. or Pacif. Isl.-------
White 97.2 95.2 -2.0 100.0 1454Exceeded Target

Assessment participation - All students
Group English language arts Mathematics Science
Enrolled Assessed % Met Target? Years in Rate Enrolled Assessed % Met Target? Years in Rate Enrolled Assessed % Met Target? Years in Rate
All Students 920 91599Yes 1 920 91499Yes 1 640 637100Yes 1

Assessment participation - Subgroups
Group English language arts Mathematics Science Overall
Enrolled Assessed Enrolled Assessed Enrolled Assessed Total Enrolled Total Assessed % Met Target? Years in Rate
High needs 423 422 423 421 285 285 1,131 1,128100Yes1
Econ. Disadvantaged 336 336 336 335 237 237 909 908100Yes1
EL and Former EL 144 144 144 144 78 78 366 366100Yes1
Students w/ disabilities 33 32 33 32 26 26 92 9098Yes1
Amer. Ind. or Alaska Nat. 1 1 1 1 1 1 3----
Asian 180 180 180 179 139 139 499 498100Yes1
Afr. Amer./Black 195 195 195 195 130 130 520 520100Yes1
Hispanic/Latino 235 235 235 235 163 163 633 633100Yes1
Multi-race, Non-Hisp./Lat. 27 27 27 27 21 21 75 75100Yes1
Nat. Haw. or Pacif. Isl. 2 2 2 2 2 2 6----
White 280 275 280 275 184 181 744 73198Yes1


About this Report

Overall classification: All Massachusetts districts and schools with sufficient data are classified into one of two accountability categories: districts and schools requiring assistance or intervention, and districts and schools not requiring assistance or intervention. The reason(s) for the district's or school's classification are noted on this report.

Progress toward improvement targets: The criterion-referenced target percentage combines multiple years of data related to achievement, growth, high school completion, English learner progress, advanced coursework completion, and chronic absenteeism into a single number between 0 and 100. For a group to be considered to be meeting targets it must have a cumulative criterion-referenced target percentage of 75% or higher.

The annual criterion-referenced target percentage is calculated by dividing the weighted total points earned by the weighted total possible points. The calculation for each is displayed below.

Weighted total of points earned = (Total achievement points earned x Achievement weight) + (Total growth points earned x Growth weight) + (Total high school completion points earned x high school completion weight) + (EL progress points earned x EL progress weight) + (Total additional indicator points earned x Additional indicator weight)

The cumulative criterion-referenced target percentage represents a weighted average of the annual criterion-referenced target percentages. At a minimum, a group must have an annual criterion-referenced target percentage for the most recent year in order to receive a cumulative percentage.

Accountability percentile: An accountability percentile between 1 and 99 is reported for most schools. This number is an indication of the school's overall performance relative to other schools that serve similar grades, and is calculated using multiple years of data for all accountability indicators. School percentiles are not calculated for districts.


Resources
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