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Conservatory Lab Charter (District)
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2024 Official Accountability Report - Conservatory Lab Charter (District)
Organization Information
DISTRICT NAME
Conservatory Lab Charter (District) (04390000)		TITLE I STATUS
Title I District
REGION
Coastal		GRADES SERVED
PK,K,01,02,03,04,05,06,07,08

Accountability Information

Overall classificationNot requiring assistance or intervention
Reason for classification
Substantial progress toward targets
Progress toward improvement targetsAccountability percentile
69% - Substantial progress toward targets-

Overall progress toward improvement targets

 20232024
Annual criterion-referenced target percentage100%49%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2023 x 40%) + (2024 x 60%)		69%
Substantial progress toward targets

2024 Points awarded

2024 Progress toward improvement targets
Indicator All students
(Non-high school grades)		 Lowest performing students
(Non-high school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement04-24-
Mathematics achievement04-44-
Science achievement04----
Achievement total01260.06867.5
GrowthEnglish language arts growth34-34-
Mathematics growth34-34-
Growth total6820.06822.5
High school completionFour-year cohort graduation rate------
Extended engagement rate------
Annual dropout rate------
High school completion total------
Progress toward attaining English language proficiencyEnglish language proficiency total4410.0---
Additional indicatorsChronic absenteeism44-44-
Advanced coursework completion------
Additional indicators total4410.04410.0
Weighted total2.09.6-5.87.6-
Percentage of possible points 21%-76%-
2024 Annual criterion-referenced target percentage49%

2023 Points awarded

2023 Progress toward improvement targets
Indicator All students
(Non-high school grades)		 Lowest performing students
(Non-high school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-44-
Mathematics achievement44-44-
Science achievement44----
Achievement total121260.08867.5
GrowthEnglish language arts growth44-44-
Mathematics growth44-44-
Growth total8820.08822.5
High school completionFour-year cohort graduation rate------
Extended engagement rate------
Annual dropout rate------
High school completion total------
Progress toward attaining English language proficiencyEnglish language proficiency total4410.0---
Additional indicatorsChronic absenteeism44-44-
Advanced coursework completion------
Additional indicators total4410.04410.0
Weighted total9.69.6-7.67.6-
Percentage of possible points 100%-100%-
2023 Annual criterion-referenced target percentage100%

Overall progress toward improvement targets

 20232024
Annual criterion-referenced target percentage91%18%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2023 x 40%) + (2024 x 60%)		47%
Moderate progress toward targets

2024 Points awarded

2024 Progress toward improvement targets
Indicator High needs Student Group
(Non-high school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement04-
Mathematics achievement04-
Science achievement04-
Achievement total01267.5
GrowthEnglish language arts growth34-
Mathematics growth34-
Growth total6822.5
High school completionFour-year cohort graduation rate---
Extended engagement rate---
Annual dropout rate---
High school completion total---
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism44-
Advanced coursework completion---
Additional indicators total4410.0
Weighted total1.810.3-
Percentage of possible points 18%-
2024 Annual criterion-referenced target percentage18%

2023 Points awarded

2023 Progress toward improvement targets
Indicator High needs Student Group
(Non-high school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement34-
Mathematics achievement44-
Science achievement44-
Achievement total111267.5
GrowthEnglish language arts growth34-
Mathematics growth44-
Growth total7822.5
High school completionFour-year cohort graduation rate---
Extended engagement rate---
Annual dropout rate---
High school completion total---
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism44-
Advanced coursework completion---
Additional indicators total4410.0
Weighted total9.410.3-
Percentage of possible points 91%-
2023 Annual criterion-referenced target percentage91%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - Non-high school
Group 2023 Achievement 2024 Achievement Change 2024 Target N Points Reason
All Students 496.7 494.1 -2.6 500.1 2440Path Forward: Declined
Lowest Performing 471.3 474.4 3.1 476.4 472Path Forward: Improved Below Target
High needs 492.9 490.7 -2.2 496.4 2010Path Forward: Declined
Low income 492.7 491.4 -1.3 495.7 1830Path Forward: Declined
EL and Former EL 488.4 487.5 -0.9 491.6 580Recovery Path: Declined
Students w/ disabilities 477.9 478.7 0.8 480.2 632Recovery Path: Improved Below Target
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 3--
Afr. Amer./Black 493.4 490.4 -3.0 496.7 1140Path Forward: Declined
Hispanic/Latino 496.5 495.3 -1.2 500.1 1070Recovery Path: Declined
Multi-race, Non-Hisp./Lat.---- 7--
Nat. Haw. or Pacif. Isl.-------
White---- 12--

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2023 Achievement 2024 Achievement Change 2024 Target N Points Reason
All Students 488.5 487.4 -1.1 490.8 2420Recovery Path: Declined
Lowest Performing 466.8 471.2 4.4 470.5 474Recovery Path: Exceeded Target
High needs 486.5 484.2 -2.3 489.8 2000Path Forward: Declined
Low income 486.2 484.6 -1.6 489.0 1820Path Forward: Declined
EL and Former EL 487.4 484.6 -2.8 490.4 580Recovery Path: Declined
Students w/ disabilities 472.7 475.3 2.6 475.2 633Recovery Path: Met Target
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 3--
Afr. Amer./Black 485.5 483.4 -2.1 488.7 1140Recovery Path: Declined
Hispanic/Latino 487.7 488.3 0.6 490.7 1052Recovery Path: Improved Below Target
Multi-race, Non-Hisp./Lat.---- 7--
Nat. Haw. or Pacif. Isl.-------
White---- 12--

Science achievement - MCAS average composite scaled score - Non-high school
Group 2023 Achievement 2024 Achievement Change 2024 Target N Points Reason
All Students 493.6 489.0 -4.6 497.9 650Path Forward: Declined
Lowest Performing---- 11--
High needs 489.9 486.8 -3.1 494.2 540Path Forward: Declined
Low income 488.6 485.9 -2.7 492.7 500Path Forward: Declined
EL and Former EL---- 17--
Students w/ disabilities---- 17--
Amer. Ind. or Alaska Nat.-------
Asian---- 2--
Afr. Amer./Black 490.8 485.3 -5.5 494.9 270Path Forward: Declined
Hispanic/Latino 490.0 491.9 1.9 493.9 323Path Forward: Met Target
Multi-race, Non-Hisp./Lat.---- 2--
Nat. Haw. or Pacif. Isl.-------
White---- 2--

English language arts growth - Non-high school
Group 2024 Mean SGP N Points Reason
All Students 54.6 1843Typical Growth - High
Lowest Performing 59.0 443Typical Growth - High
High needs 53.4 1533Typical Growth - High
Low income 53.6 1393Typical Growth - High
EL and Former EL 56.0 443Typical Growth - High
Students w/ disabilities 56.7 463Typical Growth - High
Amer. Ind. or Alaska Nat.- 1--
Asian- 3--
Afr. Amer./Black 55.4 793Typical Growth - High
Hispanic/Latino 52.3 863Typical Growth - High
Multi-race, Non-Hisp./Lat.- 5--
Nat. Haw. or Pacif. Isl.----
White- 10--

Mathematics growth - Non-high school
Group 2024 Mean SGP N Points Reason
All Students 52.5 1833Typical Growth - High
Lowest Performing 52.8 443Typical Growth - High
High needs 51.1 1533Typical Growth - High
Low income 50.9 1393Typical Growth - High
EL and Former EL 49.7 442Typical Growth - Low
Students w/ disabilities 52.4 463Typical Growth - High
Amer. Ind. or Alaska Nat.- 1--
Asian- 3--
Afr. Amer./Black 50.5 793Typical Growth - High
Hispanic/Latino 52.9 853Typical Growth - High
Multi-race, Non-Hisp./Lat.- 5--
Nat. Haw. or Pacif. Isl.----
White- 10--

Progress toward attaining English language proficiency - Non-high school
Group 2023 Rate (%) 2024 Rate (%) Change Target N Points Reason
All Students 34.3 55.6 21.3 39.7 364Exceeded Target
Lowest Performing-------
High needs-------
Low income-------
EL and Former EL 34.3 55.6 21.3 39.7 364Exceeded Target
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 2023 Rate (%) 2024 Rate (%) Change Target N Points Reason
All Students 24.0 17.2 -6.8 21.8 3614Exceeded Target
Lowest Performing 33.3 25.5 -7.8 28.4 474Exceeded Target
High needs 26.8 20.3 -6.5 24.3 2954Exceeded Target
Low income 29.1 21.6 -7.5 26.4 2684Exceeded Target
EL and Former EL 21.6 14.0 -7.6 18.3 864Exceeded Target
Students w/ disabilities 21.4 20.2 -1.2 17.1 842Improved Below Target
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 5--
Afr. Amer./Black 19.8 14.9 -4.9 16.2 1744Exceeded Target
Hispanic/Latino 30.9 20.8 -10.1 27.1 1544Exceeded Target
Multi-race, Non-Hisp./Lat.---- 10--
Nat. Haw. or Pacif. Isl.-------
White---- 17--

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 244 244100Yes 1 242 242100Yes 1 65 65100Yes 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 201 201 200 200 54 54 455 455100Yes1
Low income 183 183 182 182 50 50 415 415100Yes1
EL and Former EL 58 58 58 58 17 17 133 133100Yes1
Students w/ disabilities 63 63 63 63 17 17 143 143100Yes1
Amer. Ind. or Alaska Nat. 1 1 1 1 0- 2----
Asian 3 3 3 3 2 2 8----
Afr. Amer./Black 114 114 114 114 27 27 255 255100Yes1
Hispanic/Latino 107 107 105 105 32 32 244 244100Yes1
Multi-race, Non-Hisp./Lat. 7 7 7 7 2 2 16----
Nat. Haw. or Pacif. Isl.-----------
White 12 12 12 12 2 2 26----

School Accountability Information
School Accountability information School accountability percentile
Conservatory Lab Charter SchoolNot requiring assistance or intervention 44


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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