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Chelmsford High
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2025 Official Accountability Report - Chelmsford High
Organization Information
DISTRICT NAME
Chelmsford (00560000)		TITLE I STATUS
Non-Title I School
SCHOOL
Chelmsford High (00560505)		GRADES SERVED
09,10,11,12
REGION
Coastal		FEDERAL DESIGNATION
-

Accountability Information

Overall classificationNot requiring assistance or intervention
Reason for classification
Substantial progress toward targets
Progress toward improvement targetsAccountability percentile
62% - Substantial progress toward targets80

Overall progress toward improvement targets

 20242025
Annual criterion-referenced target percentage90%44%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2024 x 40%) + (2025 x 60%)		62%
Substantial progress toward targets

2025 Points awarded

2025 Progress toward improvement targets
Indicator All students
(High school grades)		 Lowest performing students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement34-04-
Mathematics achievement34-04-
Science achievement04-04-
Achievement total61240.001267.5
GrowthEnglish language arts growth34-34-
Mathematics growth34-34-
Growth total6820.06822.5
High school completionFour-year cohort graduation rate44----
Extended engagement rate44----
Annual dropout rate44----
High school completion total121220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total3410.0---
Additional indicatorsChronic absenteeism34-44-
Advanced coursework completion44----
Additional indicators total7810.04410.0
Weighted total7.010.0-1.810.3-
Percentage of possible points 70%-18%-
2025 Annual criterion-referenced target percentage44%

2024 Points awarded

2024 Progress toward improvement targets
Indicator All students
(High school grades)		 Lowest performing students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-44-
Mathematics achievement44-34-
Science achievement34-44-
Achievement total111247.5111267.5
GrowthEnglish language arts growth34-34-
Mathematics growth34-34-
Growth total6822.56822.5
High school completionFour-year cohort graduation rate44----
Extended engagement rate44----
Annual dropout rate44----
High school completion total121220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism44-34-
Advanced coursework completion44----
Additional indicators total8810.03410.0
Weighted total9.810.7-9.110.3-
Percentage of possible points 92%-88%-
2024 Annual criterion-referenced target percentage90%

Student group percentile

This group's overall performance relative to the performance of the same student group in schools serving similar grades
74

Overall progress toward improvement targets

 20242025
Annual criterion-referenced target percentage33%24%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2024 x 40%) + (2025 x 60%)		28%
Moderate progress toward targets

2025 Points awarded

2025 Progress toward improvement targets
Indicator High Needs Student Group
(High school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement04-
Mathematics achievement04-
Science achievement04-
Achievement total01247.5
GrowthEnglish language arts growth24-
Mathematics growth34-
Growth total5822.5
High school completionFour-year cohort graduation rate24-
Extended engagement rate04-
Annual dropout rate44-
High school completion total61220.0
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism04-
Advanced coursework completion34-
Additional indicators total3810.0
Weighted total2.610.7-
Percentage of possible points 24%-
2025 Annual criterion-referenced target percentage24%

2024 Points awarded

2024 Progress toward improvement targets
Indicator High Needs Student Group
(High school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement04-
Mathematics achievement04-
Science achievement04-
Achievement total01247.5
GrowthEnglish language arts growth24-
Mathematics growth34-
Growth total5822.5
High school completionFour-year cohort graduation rate04-
Extended engagement rate44-
Annual dropout rate44-
High school completion total81220.0
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism44-
Advanced coursework completion44-
Additional indicators total8810.0
Weighted total3.510.7-
Percentage of possible points 33%-
2024 Annual criterion-referenced target percentage33%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 521.0 510.7 -10.3 522.0 3463Path Forward: Met Target
Lowest Performing 498.2 487.4 -10.8 501.8 740Path Forward: Declined
High Needs 502.3 494.1 -8.2 504.2 1010Path Forward: Declined
English Learners and Former English Learners---- 16--
Low Income 504.4 498.8 -5.6 508.0 560Path Forward: Declined
Students with Disabilities 496.2 488.1 -8.1 498.1 600Path Forward: Declined
American Indian or Alaska Native-------
Asian 527.8 519.1 -8.7 530.6 614Recovery Path: Exceeded Target
Black or African American---- 15--
Hispanic or Latino 509.4 492.8 -16.6 512.1 350Path Forward: Declined
Multi-Race, Not Hispanic or Latino---- 16--
Native Hawaiian or Other Pacific Islander---- 1--
White 521.2 510.8 -10.4 522.5 2183Path Forward: Met Target

Mathematics achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 515.8 507.9 -7.9 518.0 3423Recovery Path: Met Target
Lowest Performing 490.4 482.7 -7.7 493.7 740Path Forward: Declined
High Needs 496.6 491.3 -5.3 499.3 970Recovery Path: Declined
English Learners and Former English Learners---- 15--
Low Income 498.6 496.9 -1.7 501.5 530Recovery Path: Declined
Students with Disabilities 488.7 484.3 -4.4 491.8 580Recovery Path: Declined
American Indian or Alaska Native-------
Asian 528.4 519.8 -8.6 531.1 604Recovery Path: Exceeded Target
Black or African American---- 16--
Hispanic or Latino 502.3 495.1 -7.2 506.5 340Path Forward: Declined
Multi-Race, Not Hispanic or Latino---- 15--
Native Hawaiian or Other Pacific Islander---- 1--
White 514.9 507.2 -7.7 516.9 2160Recovery Path: Declined

Science achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 511.2 501.6 -9.6 514.5 3300Recovery Path: Declined
Lowest Performing 486.4 476.2 -10.2 489.0 740Path Forward: Declined
High Needs 493.2 484.5 -8.7 495.5 890Recovery Path: Declined
English Learners and Former English Learners---- 13--
Low Income 496.7 486.1 -10.6 499.9 460Recovery Path: Declined
Students with Disabilities 485.8 481.3 -4.5 488.8 580Recovery Path: Declined
American Indian or Alaska Native-------
Asian 520.6 510.4 -10.2 523.5 573Recovery Path: Met Target
Black or African American---- 15--
Hispanic or Latino 496.4 483.1 -13.3 499.6 310Path Forward: Declined
Multi-Race, Not Hispanic or Latino---- 16--
Native Hawaiian or Other Pacific Islander---- 1--
White 510.8 502.8 -8.0 513.5 2100Recovery Path: Declined

English language arts growth - High school
Group 2025 Mean SGP N Points Reason
All Students 52.5 3253Typical Growth - High
Lowest Performing 51.0 743Typical Growth - High
High Needs 43.7 872Typical Growth - Low
English Learners and Former English Learners- 12--
Low Income 50.7 433Typical Growth - High
Students with Disabilities 42.0 552Typical Growth - Low
American Indian or Alaska Native----
Asian 60.1 564Exceeded Typical Growth
Black or African American- 14--
Hispanic or Latino 39.5 291Low Growth
Multi-Race, Not Hispanic or Latino- 15--
Native Hawaiian or Other Pacific Islander- 1--
White 51.7 2103Typical Growth - High

Mathematics growth - High school
Group 2025 Mean SGP N Points Reason
All Students 54.0 3203Typical Growth - High
Lowest Performing 57.5 743Typical Growth - High
High Needs 51.7 843Typical Growth - High
English Learners and Former English Learners- 11--
Low Income 55.2 413Typical Growth - High
Students with Disabilities 48.3 542Typical Growth - Low
American Indian or Alaska Native----
Asian 60.7 554Exceeded Typical Growth
Black or African American- 15--
Hispanic or Latino 56.0 283Typical Growth - High
Multi-Race, Not Hispanic or Latino- 15--
Native Hawaiian or Other Pacific Islander- 1--
White 53.2 2063Typical Growth - High

Four-year cohort graduation rate - High school
Group 2023 Rate (%) 2024 Rate (%) Change Target (%) N Points Reason
All Students 96.5 96.6 0.1 95.0 3504Exceeded Target
Lowest Performing-------
High Needs 91.5 91.7 0.2 94.6 1322Improved Below Target
English Learners and Former English Learners---- 11--
Low Income 84.9 89.7 4.8 89.0 974Exceeded Target
Students with Disabilities 96.0 90.9 -5.1 95.0 550Declined
American Indian or Alaska Native-------
Asian 98.1 100.0 1.9 95.0 694Exceeded Target
Black or African American---- 20--
Hispanic or Latino---- 25--
Multi-Race, Not Hispanic or Latino---- 7--
Native Hawaiian or Other Pacific Islander-------
White 97.0 97.4 0.4 95.0 2294Exceeded Target

Extended engagement rate - High school
Group 2022 Rate (%) 2023 Rate (%) Change Target (%) N Points Reason
All Students 98.5 97.2 -1.3 95.0 3174Exceeded Target
Lowest Performing-------
High Needs 95.8 92.6 -3.2 95.0 940Declined
English Learners and Former English Learners---- 3--
Low Income 94.0 86.8 -7.2 95.0 530Declined
Students with Disabilities 93.9 96.0 2.1 95.0 504Exceeded Target
American Indian or Alaska Native-------
Asian 100.0 98.1 -1.9 95.0 534Exceeded Target
Black or African American---- 8--
Hispanic or Latino---- 18--
Multi-Race, Not Hispanic or Latino---- 8--
Native Hawaiian or Other Pacific Islander-------
White 98.8 97.8 -1.0 95.0 2304Exceeded Target

Annual dropout rate - High school
Group 2023 Rate (%) 2024 Rate (%) Change Target (%) N Points Reason
All Students 0.5 0.3 -0.2 1.0 1,4134Exceeded Target
Lowest Performing-------
High Needs 1.3 0.7 -0.6 1.2 4164Exceeded Target
English Learners and Former English Learners---- 33--
Low Income 2.3 0.9 -1.4 2.1 2304Exceeded Target
Students with Disabilities 1.1 0.9 -0.2 1.0 2153Met Target
American Indian or Alaska Native---- 2--
Asian 0.4 0.0 -0.4 1.0 2674Exceeded Target
Black or African American---- 63--
Hispanic or Latino 1.0 0.9 -0.1 1.0 1163Met Target
Multi-Race, Not Hispanic or Latino---- 53--
Native Hawaiian or Other Pacific Islander---- 3--
White 0.3 0.2 -0.1 1.0 9094Exceeded Target

Progress toward attaining English language proficiency - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 23.1 31.3 8.2 29.1 323Met Target
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 - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 11.4 11.7 0.3 10.3 1,4233Met Target
Lowest Performing 22.8 17.6 -5.2 18.8 744Exceeded Target
High Needs 25.2 26.4 1.2 22.1 4200Declined
English Learners and Former English Learners---- 74--
Low Income 29.0 31.2 2.2 24.8 2470Declined
Students with Disabilities 32.7 30.9 -1.8 28.8 2202Improved Below Target
American Indian or Alaska Native---- 2--
Asian 4.8 5.2 0.4 2.9 2714Exceeded Target
Black or African American---- 68--
Hispanic or Latino 21.3 20.4 -0.9 17.3 1372Improved Below Target
Multi-Race, Not Hispanic or Latino---- 58--
Native Hawaiian or Other Pacific Islander---- 2--
White 11.3 10.8 -0.5 9.9 8853Met Target

Advanced coursework completion - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 96.5 98.3 1.8 95.0 6984Exceeded Target
Lowest Performing-------
High Needs 91.2 94.3 3.1 95.0 1933Met Target
English Learners and Former English Learners---- 27--
Low Income 89.6 96.5 6.9 95.0 1134Exceeded Target
Students with Disabilities 89.1 90.2 1.1 95.0 1023Met Target
American Indian or Alaska Native---- 2--
Asian 100.0 100.0 0.0 95.0 1384Exceeded Target
Black or African American---- 32--
Hispanic or Latino 91.8 95.0 3.2 95.0 603Met Target
Multi-Race, Not Hispanic or Latino---- 23--
Native Hawaiian or Other Pacific Islander---- 1--
White 96.5 98.2 1.7 95.0 4424Exceeded 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 358 35499Yes 1 356 35098Yes 1 357 35399Yes 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 110 108 109 104 109 106 328 31897Yes1
English Learners and Former English Learners 19 19 19 18 19 19 57----
Low Income 63 62 62 59 62 60 187 18197Yes1
Students with Disabilities 65 63 65 61 65 64 195 18896Yes1
American Indian or Alaska Native-----------
Asian 62 62 61 61 61 61 184 184100Yes1
Black or African American 16 15 16 16 16 16 48----
Hispanic or Latino 37 37 37 36 37 36 111 10998Yes1
Multi-Race, Not Hispanic or Latino 17 16 17 15 17 16 51----
Native Hawaiian or Other Pacific Islander 1 1 1 1 1 1 3----
White 225 223 224 221 225 223 674 66799Yes1


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.


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