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Chelmsford High
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2019 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
-

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage44%70%
Weight40%60%
Cumulative criterion-referenced target percentage
(2018 x 40%) + (2019 x 60%)		60%
Substantial progress toward targets

2019 Points awarded

2019 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 achievement24-14-
Achievement total101247.581267.5
GrowthEnglish language arts growth34-14-
Mathematics growth44-34-
Growth total7822.54822.5
High school completionFour-year cohort graduation rate04----
Extended engagement rate44----
Annual dropout rate34----
High school completion total71220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism04-44-
Advanced coursework completion44----
Additional indicators total4810.04410.0
Weighted total8.110.7-6.710.3-
Percentage of possible points 76%-65%-
2019 Annual criterion-referenced target percentage70%

2018 Points awarded

2018 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 achievement44-04-
Mathematics achievement34-04-
Science achievement14-04-
Achievement total81247.501267.5
GrowthEnglish language arts growth44-24-
Mathematics growth24-24-
Growth total6822.54822.5
High school completionFour-year cohort graduation rate44----
Extended engagement rate34----
Annual dropout rate44----
High school completion total111220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism44-24-
Advanced coursework completion44----
Additional indicators total8810.02410.0
Weighted total8.210.7-1.110.3-
Percentage of possible points 77%-11%-
2018 Annual criterion-referenced target percentage44%

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage33%40%
Weight40%60%
Cumulative criterion-referenced target percentage
(2018 x 40%) + (2019 x 60%)		37%
Moderate progress toward targets

2019 Points awarded

2019 Progress toward improvement targets
Indicator High needs Subgroup
(High school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement34-
Mathematics achievement14-
Science achievement04-
Achievement total41247.5
GrowthEnglish language arts growth24-
Mathematics growth44-
Growth total6822.5
High school completionFour-year cohort graduation rate04-
Extended engagement rate44-
Annual dropout rate04-
High school completion total41220.0
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism04-
Advanced coursework completion24-
Additional indicators total2810.0
Weighted total4.310.7-
Percentage of possible points 40%-
2019 Annual criterion-referenced target percentage40%

2018 Points awarded

2018 Progress toward improvement targets
Indicator High needs Subgroup
(High school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement04-
Mathematics achievement04-
Science achievement04-
Achievement total01247.5
GrowthEnglish language arts growth34-
Mathematics growth24-
Growth total5822.5
High school completionFour-year cohort graduation rate44-
Extended engagement rate24-
Annual dropout rate44-
High school completion total101220.0
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism44-
Advanced coursework completion04-
Additional indicators total4810.0
Weighted total3.510.7-
Percentage of possible points 33%-
2018 Annual criterion-referenced target percentage33%

Subgroup percentile

This group's overall performance relative to the performance of the same subgroup in schools serving similar grades
84

Detailed data for each indicator

English language arts achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 99.1 99.2 0.1 100.0 3664Exceeded Target
Lowest Performing 97.1 99.2 2.1 98.7 904Exceeded Target
High needs 96.1 97.1 1.0 98.0 773Met Target
Econ. Disadvantaged 98.0 94.7 -3.3 99.7 380Declined
EL and Former EL---- 15--
Students w/ disabilities 94.7 99.4 4.7 96.8 414Exceeded Target
Amer. Ind. or Alaska Nat.-------
Asian 100.0 100.0 0.0 100.0 464Exceeded Target
Afr. Amer./Black---- 13--
Hispanic/Latino---- 10--
Multi-race, Non-Hisp./Lat.---- 10--
Nat. Haw. or Pacif. Isl.-------
White 99.0 99.9 0.9 100.0 2874Exceeded Target

Mathematics achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 97.1 97.8 0.7 98.7 3634Exceeded Target
Lowest Performing 91.0 94.3 3.3 93.1 883Met Target
High needs 92.0 91.6 -0.4 94.0 771No Change
Econ. Disadvantaged 94.1 90.8 -3.3 96.4 380Declined
EL and Former EL---- 15--
Students w/ disabilities 87.0 90.9 3.9 89.6 414Exceeded Target
Amer. Ind. or Alaska Nat.-------
Asian 98.2 98.9 0.7 99.7 464Exceeded Target
Afr. Amer./Black---- 13--
Hispanic/Latino---- 11--
Multi-race, Non-Hisp./Lat.---- 10--
Nat. Haw. or Pacif. Isl.-------
White 97.3 98.8 1.5 98.9 2834Exceeded Target

Science achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 95.1 95.3 0.2 96.8 3502Improved Below Target
Lowest Performing 83.0 82.1 -0.9 85.3 881No Change
High needs 88.0 84.4 -3.6 90.6 690Declined
Econ. Disadvantaged 92.6 92.2 -0.4 94.6 321No Change
EL and Former EL---- 11--
Students w/ disabilities 84.7 76.3 -8.4 87.2 380Declined
Amer. Ind. or Alaska Nat.-------
Asian 97.7 98.9 1.2 99.5 464Exceeded Target
Afr. Amer./Black---- 11--
Hispanic/Latino---- 9--
Multi-race, Non-Hisp./Lat.---- 9--
Nat. Haw. or Pacif. Isl.-------
White 95.0 94.9 -0.1 96.7 2751No Change

English language arts growth - High school
Group 2019 Mean SGP N Points Reason
All Students 54.9 3473Typical Growth - High
Lowest Performing 35.2 851Low Growth
High needs 45.9 632Typical Growth - Low
Econ. Disadvantaged 43.4 282Typical Growth - Low
EL and Former EL- 10--
Students w/ disabilities 42.3 372Typical Growth - Low
Amer. Ind. or Alaska Nat.----
Asian 63.1 434Exceeded Typical Growth
Afr. Amer./Black- 9--
Hispanic/Latino- 9--
Multi-race, Non-Hisp./Lat.- 10--
Nat. Haw. or Pacif. Isl.----
White 54.0 2763Typical Growth - High

Mathematics growth - High school
Group 2019 Mean SGP N Points Reason
All Students 61.2 3414Exceeded Typical Growth
Lowest Performing 51.5 843Typical Growth - High
High needs 63.5 634Exceeded Typical Growth
Econ. Disadvantaged 64.9 284Exceeded Typical Growth
EL and Former EL- 10--
Students w/ disabilities 62.9 374Exceeded Typical Growth
Amer. Ind. or Alaska Nat.----
Asian 66.3 434Exceeded Typical Growth
Afr. Amer./Black- 9--
Hispanic/Latino- 8--
Multi-race, Non-Hisp./Lat.- 10--
Nat. Haw. or Pacif. Isl.----
White 60.4 2714Exceeded Typical Growth

Four-year cohort graduation rate - High school
Group 2017 Rate (%) 2018 Rate (%) Change Target (%) N Points Reason
All Students 98.3 94.2 -4.1 99.4 3980Declined
Lowest Performing-------
High needs 98.0 88.6 -9.4 100.0 1050Declined
Econ. Disadvantaged 95.9 89.4 -6.5 99.5 660Declined
EL and Former EL---- 7--
Students w/ disabilities 98.3 89.3 -9.0 100.0 560Declined
Amer. Ind. or Alaska Nat.-------
Asian 91.7 95.7 4.0 94.2 474Exceeded Target
Afr. Amer./Black---- 8--
Hispanic/Latino---- 14--
Multi-race, Non-Hisp./Lat.---- 7--
Nat. Haw. or Pacif. Isl.---- 1--
White 99.3 95.0 -4.3 100.0 3213Met Target

Extended engagement rate - High school
Group 2016 Rate (%) 2017 Rate (%) Change Target (%) N Points Reason
All Students 96.5 98.6 2.1 97.5 3634Exceeded Target
Lowest Performing-------
High needs 90.8 99.0 8.2 93.4 1004Exceeded Target
Econ. Disadvantaged 92.4 98.0 5.6 96.0 494Exceeded Target
EL and Former EL---- 7--
Students w/ disabilities 88.9 98.3 9.4 92.4 594Exceeded Target
Amer. Ind. or Alaska Nat.-------
Asian 97.6 94.4 -3.2 98.6 360Declined
Afr. Amer./Black---- 10--
Hispanic/Latino---- 16--
Multi-race, Non-Hisp./Lat.---- 6--
Nat. Haw. or Pacif. Isl.-------
White 96.7 99.3 2.6 97.9 2954Exceeded 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 1,4793Met Target
Lowest Performing-------
High needs 0.7 1.2 0.5 1.0 3250Declined
Econ. Disadvantaged 1.6 1.2 -0.4 1.4 1634Exceeded Target
EL and Former EL---- 18--
Students w/ disabilities 0.5 1.6 1.1 1.0 1900Declined
Amer. Ind. or Alaska Nat.-------
Asian 0.0 0.0 0.0 1.0 1864Exceeded Target
Afr. Amer./Black---- 43--
Hispanic/Latino---- 51--
Multi-race, Non-Hisp./Lat.---- 29--
Nat. Haw. or Pacif. Isl.---- 1--
White 0.2 0.3 0.1 1.0 1,1693Met Target

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 - High school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 8.3 10.8 2.5 7.2 1,4600Declined
Lowest Performing 9.3 5.6 -3.7 5.3 904Exceeded Target
High needs 17.3 20.9 3.6 14.2 3440Declined
Econ. Disadvantaged 19.9 33.9 14.0 15.7 1210Declined
EL and Former EL---- 66--
Students w/ disabilities 19.2 18.2 -1.0 15.3 1812Improved Below Target
Amer. Ind. or Alaska Nat.-------
Asian 3.8 6.3 2.5 1.9 2053Met Target
Afr. Amer./Black---- 52--
Hispanic/Latino---- 57--
Multi-race, Non-Hisp./Lat.---- 31--
Nat. Haw. or Pacif. Isl.---- 2--
White 8.6 10.8 2.2 7.2 1,1130Declined

Advanced coursework completion - High school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 93.5 92.2 -1.3 96.2 7204Exceeded Target
Lowest Performing-------
High needs 78.7 78.8 0.1 85.3 1792Improved Below Target
Econ. Disadvantaged 80.4 74.7 -5.7 88.1 790Declined
EL and Former EL---- 26--
Students w/ disabilities 71.3 71.4 0.1 78.5 982Improved Below Target
Amer. Ind. or Alaska Nat.-------
Asian 97.6 96.8 -0.8 100.0 944Exceeded Target
Afr. Amer./Black---- 27--
Hispanic/Latino---- 28--
Multi-race, Non-Hisp./Lat.---- 16--
Nat. Haw. or Pacif. Isl.---- 1--
White 93.5 92.1 -1.4 96.3 5544Exceeded 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 372 371100Yes 1 370 369100Yes 1 371 370100Yes 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 80 79 80 79 80 80 240 23899Yes1
Econ. Disadvantaged 41 40 41 40 41 41 123 12198Yes1
EL and Former EL 17 16 17 16 17 17 51----
Students w/ disabilities 42 42 42 42 42 42 126 126100Yes1
Amer. Ind. or Alaska Nat.-----------
Asian 46 46 47 47 47 47 140 140100Yes1
Afr. Amer./Black 15 14 15 14 15 15 45----
Hispanic/Latino 11 11 12 12 12 12 35----
Multi-race, Non-Hisp./Lat. 10 10 10 10 10 10 30----
Nat. Haw. or Pacif. Isl.-----------
White 290 290 286 286 287 286 863 862100Yes1


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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