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Boston Latin School

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2023 Official Accountability Report - Boston Latin School

Organization Information
DISTRICT NAME
Boston (00350000)
TITLE I STATUS
Title I School
SCHOOL
Boston Latin School (00350560)
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
85% - Meeting or exceeding targets96

Overall progress toward improvement targets

 2023
Criterion-referenced target percentage85%
Progress towards targetsMeeting or exceeding targets

2023 Points awarded

2023 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 achievement44-34-44----
Mathematics achievement44-04-44----
Science achievement34----44----
Achievement total111267.53867.5121247.5---
GrowthEnglish language arts growth24-24-44----
Mathematics growth24-24-44----
Growth total4822.54822.58822.5---
High school completionFour-year cohort graduation rate------44----
Extended engagement rate------44----
Annual dropout rate------34----
High school completion total------111220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total------------
Additional indicatorsChronic absenteeism24-04-34----
Advanced coursework completion------44----
Additional indicators total2410.00410.07810.0---
Weighted total8.510.3-2.97.6-10.410.7----
Percentage of possible points 83%-38%-97%---
Percentage of possible points by gradespan60%
Weight of non-high school results:33%
97%
Weight of high school results:67%
2023 Criterion-referenced target percentage85%

Student group percentile

This group's overall performance relative to the performance of the same student group in schools serving similar grades
97

Overall progress toward improvement targets

 2023
Criterion-referenced target percentage87%
Progress towards targetsMeeting or exceeding targets

2023 Points awarded

2023 Progress toward improvement targets
Indicator High needs Student Group
(Non-high school grades)
High needs Student Group
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement34-44-
Mathematics achievement34-44-
Science achievement34-44-
Achievement total91267.5121247.5
GrowthEnglish language arts growth24-44-
Mathematics growth24-44-
Growth total4822.58822.5
High school completionFour-year cohort graduation rate---44-
Extended engagement rate---44-
Annual dropout rate---34-
High school completion total---111220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism34-14-
Advanced coursework completion---44-
Additional indicators total3410.05810.0
Weighted total7.310.3-10.210.7-
Percentage of possible points 71%-95%-
Percentage of possible points by gradespan71%
Weight of non-high school results:33%
95%
Weight of high school results:67%
2023 Criterion-referenced target percentage87%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - Non-high school
Group 2022 Achievement 2023 Achievement Change 2023 Target N Points Reason
All Students 514.5 512.5 -2.0 517.2 7774Recovery Path: Exceeded Target
Lowest Performing 496.9 495.8 -1.1 501.3 843Path Forward: Met Target
High needs 511.9 505.3 -6.6 513.6 3753Recovery Path: Met Target
Low income 512.3 506.1 -6.2 514.4 3183Recovery Path: Met Target
EL and Former EL---- 160--
Students w/ disabilities---- 26--
Amer. Ind. or Alaska Nat.---- 1--
Asian 517.5 516.4 -1.1 518.9 2344Recovery Path: Exceeded Target
Afr. Amer./Black 509.9 504.0 -5.9 512.1 1563Recovery Path: Met Target
Hispanic/Latino 509.6 504.0 -5.6 512.4 1353Recovery Path: Met Target
Multi-race, Non-Hisp./Lat.---- 36--
Nat. Haw. or Pacif. Isl.-------
White 515.6 518.0 2.4 517.1 2154Path Forward: Exceeded Target

English language arts achievement - MCAS average composite scaled score - High school
Group 2022 Achievement 2023 Achievement Change 2023 Target N Points Reason
All Students 520.9 528.7 7.8 522.6 4094Recovery Path: Exceeded Target
Lowest Performing-------
High needs 520.9 526.9 6.0 522.8 1054Path Forward: Exceeded Target
Low income 522.0 526.1 4.1 525.6 924Path Forward: Exceeded Target
EL and Former EL---- 9--
Students w/ disabilities---- 11--
Amer. Ind. or Alaska Nat.---- 1--
Asian 523.4 530.5 7.1 526.8 1174Path Forward: Exceeded Target
Afr. Amer./Black 524.5 526.4 1.9 528.5 374Path Forward: Exceeded Target
Hispanic/Latino 521.8 525.3 3.5 523.1 554Recovery Path: Exceeded Target
Multi-race, Non-Hisp./Lat.---- 21--
Nat. Haw. or Pacif. Isl.-------
White 519.0 527.9 8.9 521.3 1784Recovery Path: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2022 Achievement 2023 Achievement Change 2023 Target N Points Reason
All Students 513.7 510.1 -3.6 516.3 7784Recovery Path: Exceeded Target
Lowest Performing 491.5 489.7 -1.8 495.6 840Recovery Path: Declined
High needs 509.3 503.4 -5.9 511.7 3763Recovery Path: Met Target
Low income 508.4 502.5 -5.9 511.2 3193Recovery Path: Met Target
EL and Former EL---- 160--
Students w/ disabilities---- 27--
Amer. Ind. or Alaska Nat.---- 1--
Asian 520.2 519.2 -1.0 522.3 2344Recovery Path: Exceeded Target
Afr. Amer./Black 501.6 497.3 -4.3 504.6 1573Recovery Path: Met Target
Hispanic/Latino 505.7 499.1 -6.6 508.5 1353Recovery Path: Met Target
Multi-race, Non-Hisp./Lat.---- 36--
Nat. Haw. or Pacif. Isl.-------
White 515.2 515.2 0.0 516.3 2154Recovery Path: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - High school
Group 2022 Achievement 2023 Achievement Change 2023 Target N Points Reason
All Students 530.8 526.8 -4.0 531.9 4094Path Forward: Exceeded Target
Lowest Performing-------
High needs 529.9 524.6 -5.3 532.6 1054Path Forward: Exceeded Target
Low income 530.7 523.8 -6.9 535.2 924Path Forward: Exceeded Target
EL and Former EL---- 9--
Students w/ disabilities---- 11--
Amer. Ind. or Alaska Nat.---- 1--
Asian 539.1 533.4 -5.7 542.5 1174Path Forward: Exceeded Target
Afr. Amer./Black 523.1 518.1 -5.0 528.2 374Path Forward: Exceeded Target
Hispanic/Latino 529.5 521.4 -8.1 533.7 554Path Forward: Exceeded Target
Multi-race, Non-Hisp./Lat.---- 21--
Nat. Haw. or Pacif. Isl.-------
White 528.9 525.3 -3.6 530.0 1784Path Forward: Exceeded Target

Science achievement - MCAS average composite scaled score - Non-high school
Group 2022 Achievement 2023 Achievement Change 2023 Target N Points Reason
All Students 513.7 506.0 -7.7 515.9 3613Path Forward: Met Target
Lowest Performing-------
High needs 511.8 501.5 -10.3 515.3 1423Path Forward: Met Target
Low income 512.6 501.0 -11.6 517.0 1293Path Forward: Met Target
EL and Former EL---- 35--
Students w/ disabilities---- 10--
Amer. Ind. or Alaska Nat.-------
Asian 514.8 511.0 -3.8 517.0 1064Path Forward: Exceeded Target
Afr. Amer./Black 509.1 497.3 -11.8 513.1 633Path Forward: Met Target
Hispanic/Latino 509.6 498.3 -11.3 514.2 543Path Forward: Met Target
Multi-race, Non-Hisp./Lat.---- 17--
Nat. Haw. or Pacif. Isl.-------
White 514.8 508.0 -6.8 517.0 1213Path Forward: Met Target

Science achievement - MCAS average composite scaled score - High school
Group 2022 Achievement 2023 Achievement Change 2023 Target N Points Reason
All Students 518.8 524.8 6.0 521.5 4094Recovery Path: Exceeded Target
Lowest Performing-------
High needs 518.2 523.8 5.6 521.0 1064Recovery Path: Exceeded Target
Low income 519.1 523.5 4.4 521.7 934Recovery Path: Exceeded Target
EL and Former EL---- 9--
Students w/ disabilities---- 11--
Amer. Ind. or Alaska Nat.---- 1--
Asian 524.3 531.5 7.2 526.0 1164Recovery Path: Exceeded Target
Afr. Amer./Black 514.5 514.3 -0.2 518.3 373Recovery Path: Met Target
Hispanic/Latino 519.4 522.7 3.3 522.8 564Recovery Path: Exceeded Target
Multi-race, Non-Hisp./Lat.---- 21--
Nat. Haw. or Pacif. Isl.-------
White 516.6 521.8 5.2 519.6 1784Recovery Path: Exceeded Target

English language arts growth - Non-high school
Group 2023 Mean SGP N Points Reason
All Students 45.7 7432Typical Growth - Low
Lowest Performing 40.2 842Typical Growth - Low
High needs 44.7 3642Typical Growth - Low
Low income 45.5 3072Typical Growth - Low
EL and Former EL- 156--
Students w/ disabilities- 26--
Amer. Ind. or Alaska Nat.- 1--
Asian 46.2 2272Typical Growth - Low
Afr. Amer./Black 44.5 1482Typical Growth - Low
Hispanic/Latino 45.1 1322Typical Growth - Low
Multi-race, Non-Hisp./Lat.- 34--
Nat. Haw. or Pacif. Isl.----
White 44.6 2012Typical Growth - Low

English language arts growth - High school
Group 2023 Mean SGP N Points Reason
All Students 65.0 3564Exceeded Typical Growth
Lowest Performing----
High needs 62.8 954Exceeded Typical Growth
Low income 61.1 844Exceeded Typical Growth
EL and Former EL- 9--
Students w/ disabilities- 9--
Amer. Ind. or Alaska Nat.----
Asian 65.6 1124Exceeded Typical Growth
Afr. Amer./Black 61.1 314Exceeded Typical Growth
Hispanic/Latino 56.2 513Typical Growth - High
Multi-race, Non-Hisp./Lat.- 18--
Nat. Haw. or Pacif. Isl.----
White 67.2 1444Exceeded Typical Growth

Mathematics growth - Non-high school
Group 2023 Mean SGP N Points Reason
All Students 44.5 7442Typical Growth - Low
Lowest Performing 40.4 842Typical Growth - Low
High needs 44.7 3652Typical Growth - Low
Low income 44.1 3082Typical Growth - Low
EL and Former EL- 156--
Students w/ disabilities- 27--
Amer. Ind. or Alaska Nat.- 1--
Asian 45.7 2272Typical Growth - Low
Afr. Amer./Black 41.5 1492Typical Growth - Low
Hispanic/Latino 46.3 1322Typical Growth - Low
Multi-race, Non-Hisp./Lat.- 34--
Nat. Haw. or Pacif. Isl.----
White 43.8 2012Typical Growth - Low

Mathematics growth - High school
Group 2023 Mean SGP N Points Reason
All Students 70.8 3554Exceeded Typical Growth
Lowest Performing----
High needs 66.3 944Exceeded Typical Growth
Low income 65.4 834Exceeded Typical Growth
EL and Former EL- 9--
Students w/ disabilities- 9--
Amer. Ind. or Alaska Nat.----
Asian 68.3 1124Exceeded Typical Growth
Afr. Amer./Black 61.6 314Exceeded Typical Growth
Hispanic/Latino 61.7 504Exceeded Typical Growth
Multi-race, Non-Hisp./Lat.- 18--
Nat. Haw. or Pacif. Isl.----
White 77.1 1444Exceeded Typical Growth

Four-year cohort graduation rate - High school
Group 2021 Rate (%) 2022 Rate (%) Change Target (%) N Points Reason
All Students 97.6 98.4 0.8 95.0 3664Exceeded Target
Lowest Performing-------
High needs 93.8 97.1 3.3 95.0 1364Exceeded Target
Low income 96.8 97.6 0.8 95.0 1254Exceeded Target
EL and Former EL---- 4--
Students w/ disabilities---- 10--
Amer. Ind. or Alaska Nat.-------
Asian 98.5 98.3 -0.2 95.0 1214Exceeded Target
Afr. Amer./Black 88.9 100.0 11.1 90.0 264Exceeded Target
Hispanic/Latino 100.0 95.7 -4.3 95.0 474Exceeded Target
Multi-race, Non-Hisp./Lat.---- 18--
Nat. Haw. or Pacif. Isl.-------
White 97.9 98.7 0.8 95.0 1544Exceeded Target

Extended engagement rate - High school
Group 2020 Rate (%) 2021 Rate (%) Change Target (%) N Points Reason
All Students 98.7 99.3 0.6 95.0 4114Exceeded Target
Lowest Performing-------
High needs 98.5 98.4 -0.1 95.0 1294Exceeded Target
Low income 99.1 98.4 -0.7 95.0 1244Exceeded Target
EL and Former EL---- 3--
Students w/ disabilities---- 21--
Amer. Ind. or Alaska Nat.---- 1--
Asian 99.1 99.2 0.1 95.0 1334Exceeded Target
Afr. Amer./Black 96.8 100.0 3.2 95.0 274Exceeded Target
Hispanic/Latino 100.0 100.0 0.0 95.0 454Exceeded Target
Multi-race, Non-Hisp./Lat.---- 14--
Nat. Haw. or Pacif. Isl.---- 2--
White 98.9 98.9 0.0 95.0 1894Exceeded Target

Annual dropout rate - High school
Group 2021 Rate (%) 2022 Rate (%) Change Target (%) N Points Reason
All Students 0.1 0.2 0.1 1.0 1,6323Met Target
Lowest Performing-------
High needs 0.2 0.2 0.0 1.0 4573Met Target
Low income 0.3 0.2 -0.1 1.0 4014Exceeded Target
EL and Former EL---- 4--
Students w/ disabilities---- 44--
Amer. Ind. or Alaska Nat.---- 1--
Asian 0.2 0.0 -0.2 1.0 4674Exceeded Target
Afr. Amer./Black 0.0 0.0 0.0 1.0 1384Exceeded Target
Hispanic/Latino 0.0 0.0 0.0 1.0 2284Exceeded Target
Multi-race, Non-Hisp./Lat.---- 80--
Nat. Haw. or Pacif. Isl.---- 2--
White 0.0 0.6 0.6 1.0 7163Met Target

Progress toward attaining English language proficiency - Non-high school
Group 2022 Rate (%) 2023 Rate (%) Change Target N Points Reason
All Students-------
Lowest Performing-------
High needs-------
Low income-------
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 2022 Rate (%) 2023 Rate (%) Change Target N Points Reason
All Students-------
Lowest Performing-------
High needs-------
Low income-------
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 2022 Rate (%) 2023 Rate (%) Change Target N Points Reason
All Students 11.7 11.4 -0.3 10.6 7892Improved Below Target
Lowest Performing 21.4 23.8 2.4 21.2 840Declined
High needs 17.0 15.0 -2.0 14.9 3863Met Target
Low income 17.9 15.1 -2.8 13.6 3252Improved Below Target
EL and Former EL---- 164--
Students w/ disabilities---- 30--
Amer. Ind. or Alaska Nat.---- 1--
Asian 5.8 4.7 -1.1 3.7 2364Exceeded Target
Afr. Amer./Black 18.9 12.5 -6.4 15.9 1604Exceeded Target
Hispanic/Latino 21.1 23.2 2.1 16.9 1380Declined
Multi-race, Non-Hisp./Lat.---- 37--
Nat. Haw. or Pacif. Isl.-------
White 10.2 11.1 0.9 9.0 2170Declined

Chronic absenteeism - High school
Group 2022 Rate (%) 2023 Rate (%) Change Target N Points Reason
All Students 19.2 17.7 -1.5 18.1 1,6223Met Target
Lowest Performing-------
High needs 24.3 24.4 0.1 21.2 4461No Change
Low income 24.4 24.0 -0.4 20.2 3832Improved Below Target
EL and Former EL---- 50--
Students w/ disabilities---- 60--
Amer. Ind. or Alaska Nat.---- 1--
Asian 13.8 14.6 0.8 11.9 4653Met Target
Afr. Amer./Black 21.6 17.0 -4.6 18.3 1354Exceeded Target
Hispanic/Latino 22.9 19.9 -3.0 18.9 2262Improved Below Target
Multi-race, Non-Hisp./Lat.---- 79--
Nat. Haw. or Pacif. Isl.---- 4--
White 21.3 18.7 -2.6 19.9 7124Exceeded Target

Advanced coursework completion - High school
Group 2022 Rate (%) 2023 Rate (%) Change Target N Points Reason
All Students 98.8 99.9 1.1 95.0 7974Exceeded Target
Lowest Performing-------
High needs 98.3 99.5 1.2 95.0 2204Exceeded Target
Low income 98.5 100.0 1.5 95.0 1884Exceeded Target
EL and Former EL---- 9--
Students w/ disabilities---- 30--
Amer. Ind. or Alaska Nat.-------
Asian 99.6 100.0 0.4 95.0 2164Exceeded Target
Afr. Amer./Black 96.8 98.5 1.7 95.0 664Exceeded Target
Hispanic/Latino 97.0 100.0 3.0 95.0 1144Exceeded Target
Multi-race, Non-Hisp./Lat.---- 36--
Nat. Haw. or Pacif. Isl.---- 2--
White 99.1 100.0 0.9 95.0 3634Exceeded 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 1,196 1,18899Yes 1 1,196 1,18999Yes 1 772 771100Yes 1

Assessment participation - Student Group
Group English language arts Mathematics Science Overall
Enrolled Assessed Enrolled Assessed Enrolled Assessed Total Enrolled Total Assessed % Met Target? Years in Rate
High needs 489 482 489 483 249 248 1,227 1,21399Yes1
Low income 417 412 417 413 222 222 1,056 1,04799Yes1
EL and Former EL 171 170 171 170 44 44 386 38499Yes1
Students w/ disabilities 40 37 40 38 22 21 102 9697Yes2
Amer. Ind. or Alaska Nat. 2 2 2 2 1 1 5----
Asian 352 351 352 351 223 223 927 925100Yes1
Afr. Amer./Black 197 194 197 195 100 100 494 48999Yes1
Hispanic/Latino 194 191 194 191 110 110 498 49299Yes1
Multi-race, Non-Hisp./Lat. 57 57 57 57 38 38 152 152100Yes1
Nat. Haw. or Pacif. Isl.-----------
White 394 393 394 393 300 299 1,088 1,085100Yes1


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 criterion-referenced target percentage of 75% or higher.

The 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)

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.


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