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Conservatory Lab Charter (District)
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2023 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
Meeting or exceeding targets
Progress toward improvement targetsAccountability percentile
100% - Meeting or exceeding targets-

Overall progress toward improvement targets

 2023
Criterion-referenced target percentage100%
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)
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 Criterion-referenced target percentage100%

Overall progress toward improvement targets

 2023
Criterion-referenced target percentage91%
Progress towards targetsMeeting or exceeding targets

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 Criterion-referenced target percentage91%

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 493.1 496.7 3.6 496.1 2384Recovery Path: Exceeded Target
Lowest Performing 466.2 477.4 11.2 472.1 414Path Forward: Exceeded Target
High needs 490.3 492.9 2.6 492.4 1933Recovery Path: Met Target
Low income 491.1 492.7 1.6 492.5 1723Recovery Path: Met Target
EL and Former EL 487.7 488.4 0.7 490.9 622Recovery Path: Improved Below Target
Students w/ disabilities 473.7 477.9 4.2 476.0 554Recovery Path: Exceeded Target
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 7--
Afr. Amer./Black 488.8 493.4 4.6 491.6 1034Recovery Path: Exceeded Target
Hispanic/Latino 493.6 496.5 2.9 497.2 1073Recovery Path: Met Target
Multi-race, Non-Hisp./Lat.---- 8--
Nat. Haw. or Pacif. Isl.-------
White---- 12--

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2022 Achievement 2023 Achievement Change 2023 Target N Points Reason
All Students 482.0 488.5 6.5 484.3 2394Recovery Path: Exceeded Target
Lowest Performing 461.7 472.5 10.8 464.9 414Recovery Path: Exceeded Target
High needs 479.3 486.5 7.2 481.8 1944Recovery Path: Exceeded Target
Low income 479.5 486.2 6.7 481.6 1734Recovery Path: Exceeded Target
EL and Former EL 480.2 487.4 7.2 483.2 624Recovery Path: Exceeded Target
Students w/ disabilities 466.7 472.7 6.0 469.2 554Recovery Path: Exceeded Target
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 7--
Afr. Amer./Black 478.1 485.5 7.4 481.3 1034Recovery Path: Exceeded Target
Hispanic/Latino 481.9 487.7 5.8 484.9 1084Recovery Path: Exceeded Target
Multi-race, Non-Hisp./Lat.---- 8--
Nat. Haw. or Pacif. Isl.-------
White---- 12--

Science achievement - MCAS average composite scaled score - Non-high school
Group 2022 Achievement 2023 Achievement Change 2023 Target N Points Reason
All Students 488.3 493.6 5.3 492.6 674Path Forward: Exceeded Target
Lowest Performing-------
High needs 484.4 489.9 5.5 488.7 544Path Forward: Exceeded Target
Low income 486.1 488.6 2.5 490.2 472Path Forward: Improved Below Target
EL and Former EL---- 19--
Students w/ disabilities---- 14--
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 1--
Afr. Amer./Black 483.1 490.8 7.7 487.2 304Path Forward: Exceeded Target
Hispanic/Latino 489.8 490.0 0.2 493.7 262Path Forward: Improved Below Target
Multi-race, Non-Hisp./Lat.---- 1--
Nat. Haw. or Pacif. Isl.-------
White---- 8--

English language arts growth - Non-high school
Group 2023 Mean SGP N Points Reason
All Students 60.5 1804Exceeded Typical Growth
Lowest Performing 70.8 404Exceeded Typical Growth
High needs 58.6 1473Typical Growth - High
Low income 57.5 1333Typical Growth - High
EL and Former EL 56.6 493Typical Growth - High
Students w/ disabilities 66.0 414Exceeded Typical Growth
Amer. Ind. or Alaska Nat.- 1--
Asian- 6--
Afr. Amer./Black 65.6 774Exceeded Typical Growth
Hispanic/Latino 56.7 833Typical Growth - High
Multi-race, Non-Hisp./Lat.- 4--
Nat. Haw. or Pacif. Isl.----
White- 9--

Mathematics growth - Non-high school
Group 2023 Mean SGP N Points Reason
All Students 60.8 1804Exceeded Typical Growth
Lowest Performing 62.9 404Exceeded Typical Growth
High needs 62.1 1474Exceeded Typical Growth
Low income 60.5 1334Exceeded Typical Growth
EL and Former EL 65.5 494Exceeded Typical Growth
Students w/ disabilities 60.2 404Exceeded Typical Growth
Amer. Ind. or Alaska Nat.- 1--
Asian- 6--
Afr. Amer./Black 60.3 764Exceeded Typical Growth
Hispanic/Latino 62.8 844Exceeded Typical Growth
Multi-race, Non-Hisp./Lat.- 4--
Nat. Haw. or Pacif. Isl.----
White- 9--

Progress toward attaining English language proficiency - Non-high school
Group 2022 Rate (%) 2023 Rate (%) Change Target N Points Reason
All Students 11.4 34.3 22.9 16.6 354Exceeded Target
Lowest Performing-------
High needs-------
Low income-------
EL and Former EL 11.4 34.3 22.9 16.6 354Exceeded 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 2022 Rate (%) 2023 Rate (%) Change Target N Points Reason
All Students 34.6 24.0 -10.6 32.4 3584Exceeded Target
Lowest Performing 41.5 24.4 -17.1 36.4 414Exceeded Target
High needs 38.4 26.8 -11.6 35.9 2914Exceeded Target
Low income 39.3 29.1 -10.2 36.6 2584Exceeded Target
EL and Former EL 35.6 21.6 -14.0 32.3 1024Exceeded Target
Students w/ disabilities 41.1 21.4 -19.7 36.8 844Exceeded Target
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 7--
Afr. Amer./Black 28.2 19.8 -8.4 24.6 1674Exceeded Target
Hispanic/Latino 43.6 30.9 -12.7 39.8 1524Exceeded Target
Multi-race, Non-Hisp./Lat.---- 13--
Nat. Haw. or Pacif. Isl.-------
White---- 18--

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 239 238100Yes 1 239 239100Yes 1 67 67100Yes 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 194 193 194 194 54 54 442 441100Yes1
Low income 173 172 173 173 47 47 393 392100Yes1
EL and Former EL 62 62 62 62 19 19 143 143100Yes1
Students w/ disabilities 55 55 55 55 14 14 124 124100Yes1
Amer. Ind. or Alaska Nat. 1 1 1 1 1 1 3----
Asian 7 7 7 7 1 1 15----
Afr. Amer./Black 103 103 103 103 30 30 236 236100Yes1
Hispanic/Latino 108 107 108 108 26 26 242 241100Yes1
Multi-race, Non-Hisp./Lat. 8 8 8 8 1 1 17----
Nat. Haw. or Pacif. Isl.-----------
White 12 12 12 12 8 8 32----

School Accountability Information
School Accountability information School accountability percentile
Conservatory Lab Charter SchoolNot requiring assistance or intervention 42


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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