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Boston Latin School

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2025 Official Accountability Report - Boston Latin School

Organization Information
DISTRICT NAME
Boston (00350000)
TITLE I STATUS
Non-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
School of Recognition
Progress toward improvement targetsAccountability percentile
76% - Meeting or exceeding targets96

Overall progress toward improvement targets

 20242025
Annual criterion-referenced target percentage79%74%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2024 x 40%) + (2025 x 60%)
76%
Meeting or exceeding targets

2025 Points awarded

2025 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 achievement44-04-44-34-
Mathematics achievement44-34-44-34-
Science achievement24----44-34-
Achievement total101267.53867.5121247.591267.5
GrowthEnglish language arts growth24-04-34-34-
Mathematics growth24-24-44-44-
Growth total4822.52822.57822.57822.5
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 absenteeism04-04-04-04-
Advanced coursework completion------44----
Additional indicators total0410.00410.04810.00410.0
Weighted total7.710.3-2.57.6-9.910.7-7.710.3-
Percentage of possible points 75%-33%-93%-75%-
Percentage of possible points by gradespan54%
Weight of non-high school results:34%
84%
Weight of high school results:66%
2025 Annual criterion-referenced target percentage74%

2024 Points awarded

2024 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 achievement44-04-44-34-
Mathematics achievement44-34-44-34-
Science achievement04----44-44-
Achievement total81267.53867.5121247.5101267.5
GrowthEnglish language arts growth24-14-44-44-
Mathematics growth24-24-44-44-
Growth total4822.53822.58822.58822.5
High school completionFour-year cohort graduation rate------44----
Extended engagement rate------44----
Annual dropout rate------44----
High school completion total------121220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total------------
Additional indicatorsChronic absenteeism44-24-24-34-
Advanced coursework completion------44----
Additional indicators total4410.02410.06810.03410.0
Weighted total6.710.3-2.97.6-10.510.7-8.910.3-
Percentage of possible points 65%-38%-98%-86%-
Percentage of possible points by gradespan52%
Weight of non-high school results:33%
92%
Weight of high school results:67%
2024 Annual criterion-referenced target percentage79%

Student group percentile

This group's overall performance relative to the performance of the same student group in schools serving similar grades
94

Overall progress toward improvement targets

 20242025
Annual criterion-referenced target percentage82%85%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2024 x 40%) + (2025 x 60%)
84%
Meeting or exceeding targets

2025 Points awarded

2025 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 achievement44-44-
Mathematics achievement34-44-
Science achievement24-44-
Achievement total91267.5121247.5
GrowthEnglish language arts growth24-34-
Mathematics growth24-44-
Growth total4822.57822.5
High school completionFour-year cohort graduation rate---44-
Extended engagement rate---44-
Annual dropout rate---44-
High school completion total---121220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism04-14-
Advanced coursework completion---34-
Additional indicators total0410.04810.0
Weighted total7.010.3-10.110.7-
Percentage of possible points 68%-94%-
Percentage of possible points by gradespan68%
Weight of non-high school results:34%
94%
Weight of high school results:66%
2025 Annual criterion-referenced target percentage85%

2024 Points awarded

2024 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 achievement04-44-
Achievement total61267.5121247.5
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 absenteeism44-24-
Advanced coursework completion---44-
Additional indicators total4410.06810.0
Weighted total5.410.3-10.310.7-
Percentage of possible points 52%-96%-
Percentage of possible points by gradespan52%
Weight of non-high school results:33%
96%
Weight of high school results:67%
2024 Annual criterion-referenced target percentage82%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - Non-high school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 510.2 514.9 4.7 512.9 7954Recovery Path: Exceeded Target
Lowest Performing 488.0 486.2 -1.8 493.1 950Path Forward: Declined
High Needs 502.0 506.4 4.4 503.7 3664Recovery Path: Exceeded Target
English Learners and Former English Learners 497.4 499.6 2.2 499.8 1053Path Forward: Met Target
Low Income 501.9 507.1 5.2 504.0 3204Recovery Path: Exceeded Target
Students with Disabilities 489.8 508.0 18.2 492.2 294Path Forward: Exceeded Target
American Indian or Alaska Native---- 1--
Asian 513.1 517.3 4.2 514.5 2334Recovery Path: Exceeded Target
Black or African American 499.4 506.2 6.8 501.6 1414Recovery Path: Exceeded Target
Hispanic or Latino 503.0 505.1 2.1 505.8 1493Recovery Path: Met Target
Multi-Race, Not Hispanic or Latino 524.0 524.4 0.4 525.4 504Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander-------
White 518.6 522.5 3.9 520.1 2214Path Forward: Exceeded Target

English language arts achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 528.5 521.2 -7.3 529.5 4004Path Forward: Exceeded Target
Lowest Performing 515.1 507.7 -7.4 518.7 993Path Forward: Met Target
High Needs 525.1 517.9 -7.2 527.0 1644Path Forward: Exceeded Target
English Learners and Former English Learners---- 12--
Low Income 526.3 518.4 -7.9 529.9 1494Path Forward: Exceeded Target
Students with Disabilities---- 16--
American Indian or Alaska Native-------
Asian 528.2 521.9 -6.3 531.6 1334Path Forward: Exceeded Target
Black or African American 529.8 519.0 -10.8 533.8 664Path Forward: Exceeded Target
Hispanic or Latino 524.5 517.4 -7.1 525.8 644Recovery Path: Exceeded Target
Multi-Race, Not Hispanic or Latino---- 17--
Native Hawaiian or Other Pacific Islander-------
White 529.4 522.5 -6.9 530.7 1204Path Forward: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 512.4 515.8 3.4 515.0 7964Recovery Path: Exceeded Target
Lowest Performing 492.6 491.7 -0.9 497.6 953Recovery Path: Met Target
High Needs 506.0 508.8 2.8 508.4 3663Recovery Path: Met Target
English Learners and Former English Learners 505.4 504.7 -0.7 508.4 1053Path Forward: Met Target
Low Income 505.2 508.8 3.6 508.0 3214Recovery Path: Exceeded Target
Students with Disabilities 496.1 508.0 11.9 499.3 294Path Forward: Exceeded Target
American Indian or Alaska Native---- 1--
Asian 519.5 523.2 3.7 521.6 2344Recovery Path: Exceeded Target
Black or African American 502.0 504.4 2.4 505.0 1403Recovery Path: Met Target
Hispanic or Latino 501.9 503.1 1.2 504.7 1483Recovery Path: Met Target
Multi-Race, Not Hispanic or Latino 520.5 523.2 2.7 522.0 514Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander-------
White 518.8 522.2 3.4 520.5 2224Path Forward: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 529.5 525.6 -3.9 530.6 3954Path Forward: Exceeded Target
Lowest Performing 514.3 505.9 -8.4 517.6 993Path Forward: Met Target
High Needs 526.0 521.9 -4.1 528.7 1624Path Forward: Exceeded Target
English Learners and Former English Learners---- 11--
Low Income 526.7 521.7 -5.0 531.2 1474Path Forward: Exceeded Target
Students with Disabilities---- 15--
American Indian or Alaska Native-------
Asian 533.5 530.7 -2.8 536.9 1324Path Forward: Exceeded Target
Black or African American 522.4 514.5 -7.9 527.5 663Path Forward: Met Target
Hispanic or Latino 518.3 517.9 -0.4 522.5 624Path Forward: Exceeded Target
Multi-Race, Not Hispanic or Latino---- 17--
Native Hawaiian or Other Pacific Islander-------
White 530.6 528.8 -1.8 531.7 1184Path Forward: Exceeded Target

Science achievement - MCAS average composite scaled score - Non-high school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 501.5 501.6 0.1 503.7 3932Path Forward: Improved Below Target
Lowest Performing---- 89--
High Needs 494.3 495.6 1.3 497.8 1912Path Forward: Improved Below Target
English Learners and Former English Learners 491.0 488.3 -2.7 495.2 430Path Forward: Declined
Low Income 494.4 495.9 1.5 498.8 1683Path Forward: Met Target
Students with Disabilities---- 18--
American Indian or Alaska Native---- 1--
Asian 505.5 504.3 -1.2 507.7 1160Path Forward: Declined
Black or African American 491.2 492.3 1.1 495.2 703Path Forward: Met Target
Hispanic or Latino 495.5 493.0 -2.5 500.1 783Path Forward: Met Target
Multi-Race, Not Hispanic or Latino---- 20--
Native Hawaiian or Other Pacific Islander-------
White 509.0 509.3 0.3 511.2 1083Path Forward: Met Target

Science achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 526.8 520.0 -6.8 527.8 3954Path Forward: Exceeded Target
Lowest Performing 510.0 502.4 -7.6 512.6 993Path Forward: Met Target
High Needs 522.7 516.4 -6.3 525.0 1624Path Forward: Exceeded Target
English Learners and Former English Learners---- 11--
Low Income 523.6 516.3 -7.3 526.2 1484Recovery Path: Exceeded Target
Students with Disabilities---- 16--
American Indian or Alaska Native-------
Asian 528.2 523.0 -5.2 530.3 1334Path Forward: Exceeded Target
Black or African American 523.6 511.4 -12.2 526.6 653Path Forward: Met Target
Hispanic or Latino 519.0 511.7 -7.3 522.2 593Path Forward: Met Target
Multi-Race, Not Hispanic or Latino---- 17--
Native Hawaiian or Other Pacific Islander-------
White 527.9 523.6 -4.3 529.2 1214Path Forward: Exceeded Target

English language arts growth - Non-high school
Group 2025 Mean SGP N Points Reason
All Students 45.5 7532Typical Growth - Low
Lowest Performing 29.6 880Very Low Growth
High Needs 41.7 3502Typical Growth - Low
English Learners and Former English Learners 44.9 1022Typical Growth - Low
Low Income 42.4 3062Typical Growth - Low
Students with Disabilities 40.5 272Typical Growth - Low
American Indian or Alaska Native- 1--
Asian 49.4 2222Typical Growth - Low
Black or African American 40.3 1312Typical Growth - Low
Hispanic or Latino 39.8 1441Low Growth
Multi-Race, Not Hispanic or Latino 48.3 452Typical Growth - Low
Native Hawaiian or Other Pacific Islander----
White 48.1 2102Typical Growth - Low

English language arts growth - High school
Group 2025 Mean SGP N Points Reason
All Students 53.4 3993Typical Growth - High
Lowest Performing 56.6 993Typical Growth - High
High Needs 50.4 1633Typical Growth - High
English Learners and Former English Learners- 12--
Low Income 50.2 1483Typical Growth - High
Students with Disabilities- 16--
American Indian or Alaska Native----
Asian 50.5 1333Typical Growth - High
Black or African American 55.4 663Typical Growth - High
Hispanic or Latino 51.7 633Typical Growth - High
Multi-Race, Not Hispanic or Latino- 17--
Native Hawaiian or Other Pacific Islander----
White 55.5 1203Typical Growth - High

Mathematics growth - Non-high school
Group 2025 Mean SGP N Points Reason
All Students 47.6 7572Typical Growth - Low
Lowest Performing 43.2 882Typical Growth - Low
High Needs 45.4 3542Typical Growth - Low
English Learners and Former English Learners 47.6 1032Typical Growth - Low
Low Income 45.7 3102Typical Growth - Low
Students with Disabilities 44.1 272Typical Growth - Low
American Indian or Alaska Native- 1--
Asian 54.5 2243Typical Growth - High
Black or African American 42.2 1312Typical Growth - Low
Hispanic or Latino 41.3 1432Typical Growth - Low
Multi-Race, Not Hispanic or Latino 52.6 463Typical Growth - High
Native Hawaiian or Other Pacific Islander----
White 46.9 2122Typical Growth - Low

Mathematics growth - High school
Group 2025 Mean SGP N Points Reason
All Students 64.4 3944Exceeded Typical Growth
Lowest Performing 65.2 994Exceeded Typical Growth
High Needs 61.5 1614Exceeded Typical Growth
English Learners and Former English Learners- 11--
Low Income 61.2 1464Exceeded Typical Growth
Students with Disabilities- 15--
American Indian or Alaska Native----
Asian 66.0 1324Exceeded Typical Growth
Black or African American 64.2 664Exceeded Typical Growth
Hispanic or Latino 60.4 614Exceeded Typical Growth
Multi-Race, Not Hispanic or Latino- 17--
Native Hawaiian or Other Pacific Islander----
White 65.4 1184Exceeded Typical Growth

Four-year cohort graduation rate - High school
Group 2023 Rate (%) 2024 Rate (%) Change Target (%) N Points Reason
All Students 98.3 98.7 0.4 95.0 3854Exceeded Target
Lowest Performing-------
High Needs 97.4 97.9 0.5 95.0 1464Exceeded Target
English Learners and Former English Learners---- 2--
Low Income 97.9 99.2 1.3 95.0 1314Exceeded Target
Students with Disabilities---- 17--
American Indian or Alaska Native-------
Asian 100.0 98.9 -1.1 95.0 894Exceeded Target
Black or African American 94.3 94.1 -0.2 95.0 341No Change
Hispanic or Latino 96.2 100.0 3.8 95.0 594Exceeded Target
Multi-Race, Not Hispanic or Latino---- 18--
Native Hawaiian or Other Pacific Islander-------
White 98.3 98.9 0.6 95.0 1854Exceeded Target

Extended engagement rate - High school
Group 2022 Rate (%) 2023 Rate (%) Change Target (%) N Points Reason
All Students 99.2 99.3 0.1 95.0 4144Exceeded Target
Lowest Performing-------
High Needs 98.5 99.4 0.9 95.0 1564Exceeded Target
English Learners and Former English Learners-------
Low Income 98.4 99.3 0.9 95.0 1424Exceeded Target
Students with Disabilities---- 18--
American Indian or Alaska Native-------
Asian 99.2 100.0 0.8 95.0 1254Exceeded Target
Black or African American 100.0 97.1 -2.9 95.0 354Exceeded Target
Hispanic or Latino 100.0 100.0 0.0 95.0 534Exceeded Target
Multi-Race, Not Hispanic or Latino---- 18--
Native Hawaiian or Other Pacific Islander---- 2--
White 98.7 98.9 0.2 95.0 1814Exceeded Target

Annual dropout rate - High school
Group 2023 Rate (%) 2024 Rate (%) Change Target (%) N Points Reason
All Students 0.1 0.1 0.0 1.0 1,5993Met Target
Lowest Performing-------
High Needs 0.2 0.0 -0.2 1.0 4694Exceeded Target
English Learners and Former English Learners---- 4--
Low Income 0.0 0.0 0.0 1.0 4094Exceeded Target
Students with Disabilities---- 56--
American Indian or Alaska Native---- 1--
Asian 0.2 0.0 -0.2 1.0 4694Exceeded Target
Black or African American 0.0 0.0 0.0 1.0 1704Exceeded Target
Hispanic or Latino 0.0 0.0 0.0 1.0 2284Exceeded Target
Multi-Race, Not Hispanic or Latino---- 75--
Native Hawaiian or Other Pacific Islander---- 2--
White 0.0 0.3 0.3 1.0 6543Met Target

Progress toward attaining English language proficiency - Non-high school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students-------
Lowest Performing-------
High Needs-------
English Learners and Former English Learners-------
Low Income-------
Students with Disabilities-------
American Indian or Alaska Native-------
Asian-------
Black or African American-------
Hispanic or Latino-------
Multi-Race, Not Hispanic or Latino-------
Native Hawaiian or Other Pacific Islander-------
White-------

Progress toward attaining English language proficiency - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students-------
Lowest Performing-------
High Needs-------
English Learners and Former English Learners-------
Low Income-------
Students with Disabilities-------
American Indian or Alaska Native-------
Asian-------
Black or African American-------
Hispanic or Latino-------
Multi-Race, Not Hispanic or Latino-------
Native Hawaiian or Other Pacific Islander-------
White-------

Chronic absenteeism - Non-high school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 8.5 10.6 2.1 7.4 8110Declined
Lowest Performing 9.2 15.8 6.6 5.9 950Declined
High Needs 11.0 13.5 2.5 8.9 3710Declined
English Learners and Former English Learners 8.8 7.5 -1.3 5.8 1073Met Target
Low Income 12.4 14.1 1.7 8.1 3270Declined
Students with Disabilities 22.2 14.3 -7.9 19.7 284Exceeded Target
American Indian or Alaska Native---- 1--
Asian 2.9 3.0 0.1 1.0 2364Exceeded Target
Black or African American 13.7 16.7 3.0 10.7 1440Declined
Hispanic or Latino 16.0 18.4 2.4 11.8 1520Declined
Multi-Race, Not Hispanic or Latino 0.0 7.8 7.8 1.0 513Met Target
Native Hawaiian or Other Pacific Islander-------
White 6.5 9.7 3.2 5.3 2270Declined

Chronic absenteeism - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 17.2 17.8 0.6 16.1 1,6030Declined
Lowest Performing 13.0 21.2 8.2 9.0 990Declined
High Needs 22.6 22.7 0.1 19.5 5421No Change
English Learners and Former English Learners---- 44--
Low Income 22.3 23.4 1.1 18.1 4920Declined
Students with Disabilities---- 62--
American Indian or Alaska Native---- 2--
Asian 8.6 13.4 4.8 6.7 5060Declined
Black or African American 18.7 15.4 -3.3 15.4 2273Met Target
Hispanic or Latino 25.2 27.8 2.6 21.2 2410Declined
Multi-Race, Not Hispanic or Latino---- 74--
Native Hawaiian or Other Pacific Islander---- 2--
White 19.9 17.6 -2.3 18.5 5514Exceeded Target

Advanced coursework completion - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 99.6 98.7 -0.9 95.0 7844Exceeded Target
Lowest Performing-------
High Needs 99.5 94.8 -4.7 95.0 1913Met Target
English Learners and Former English Learners---- 8--
Low Income 99.4 96.3 -3.1 95.0 1644Exceeded Target
Students with Disabilities---- 33--
American Indian or Alaska Native---- 1--
Asian 100.0 97.5 -2.5 95.0 2414Exceeded Target
Black or African American 98.6 100.0 1.4 95.0 664Exceeded Target
Hispanic or Latino 99.1 97.9 -1.2 95.0 974Exceeded Target
Multi-Race, Not Hispanic or Latino---- 38--
Native Hawaiian or Other Pacific Islander---- 2--
White 99.7 99.4 -0.3 95.0 3394Exceeded 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 1,207 1,19699Yes 1 1,207 1,19299Yes 1 802 79499Yes 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 537 531 537 529 361 356 1,435 1,41699Yes1
English Learners and Former English Learners 118 117 118 116 58 55 294 28898Yes1
Low Income 476 470 476 469 320 318 1,272 1,25799Yes1
Students with Disabilities 46 46 46 45 35 34 127 12598Yes1
American Indian or Alaska Native 1 1 1 1 1 1 3----
Asian 368 366 368 366 250 249 986 98199Yes1
Black or African American 210 208 210 207 137 136 557 55199Yes1
Hispanic or Latino 214 213 214 210 145 142 573 56599Yes1
Multi-Race, Not Hispanic or Latino 68 67 68 68 37 37 173 17299Yes1
Native Hawaiian or Other Pacific Islander-----------
White 346 341 346 340 232 229 924 91098Yes1


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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Accountability Terms Glossary of Accountability Terms

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