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Conservatory Lab Charter (District)
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2019 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
60% - Substantial progress toward targets-

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage77%49%
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
(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 achievement24-44-
Science achievement04----
Achievement total21260.06867.5
GrowthEnglish language arts growth24-34-
Mathematics growth34-34-
Growth total5820.06822.5
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 absenteeism04-04-
Advanced coursework completion------
Additional indicators total0410.00410.0
Weighted total2.69.6-5.47.6-
Percentage of possible points 27%-71%-
Criterion-referenced target percentage49%

2018 Points awarded

2018 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 achievement04----
Achievement total81260.08867.5
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 total0410.0---
Additional indicatorsChronic absenteeism24-04-
Advanced coursework completion------
Additional indicators total2410.00410.0
Weighted total6.29.6-6.87.6-
Percentage of possible points 65%-89%-
Criterion-referenced target percentage77%

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage67%47%
Weight40%60%
Cumulative criterion-referenced target percentage
(2018 x 40%) + (2019 x 60%)		55%
Substantial progress toward targets

2019 Points awarded

2019 Progress toward improvement targets
Indicator High needs Subgroup
(Non-high school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement24-
Mathematics achievement34-
Science achievement04-
Achievement total51267.5
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 absenteeism14-
Advanced coursework completion---
Additional indicators total1410.0
Weighted total4.810.3-
Percentage of possible points 47%-
2019 Annual criterion-referenced target percentage47%

2018 Points awarded

2018 Progress toward improvement targets
Indicator High needs Subgroup
(Non-high school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-
Mathematics achievement44-
Science achievement04-
Achievement total81267.5
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 absenteeism14-
Advanced coursework completion---
Additional indicators total1410.0
Weighted total6.910.3-
Percentage of possible points 67%-
2018 Annual criterion-referenced target percentage67%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 497.1 496.1 -1.0 498.1 2310Declined
Lowest Performing 473.8 475.2 1.4 478.9 342Improved Below Target
High needs 491.7 492.4 0.7 493.1 1662Improved Below Target
Econ. Disadvantaged 491.6 492.5 0.9 492.6 1203Met Target
EL and Former EL 492.1 494.1 2.0 493.1 864Exceeded Target
Students w/ disabilities 479.4 480.7 1.3 481.2 463Met Target
Amer. Ind. or Alaska Nat.-------
Asian---- 6--
Afr. Amer./Black 492.4 491.6 -0.8 493.9 1150Declined
Hispanic/Latino 496.2 497.2 1.0 497.3 963Met Target
Multi-race, Non-Hisp./Lat.---- 5--
Nat. Haw. or Pacif. Isl.-------
White---- 9--

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 490.8 491.2 0.4 492.4 2322Improved Below Target
Lowest Performing 467.2 472.4 5.2 470.9 344Exceeded Target
High needs 485.7 486.9 1.2 487.2 1673Met Target
Econ. Disadvantaged 485.4 485.7 0.3 486.5 1212Improved Below Target
EL and Former EL 487.3 489.3 2.0 489.2 873Met Target
Students w/ disabilities 473.1 476.5 3.4 474.9 464Exceeded Target
Amer. Ind. or Alaska Nat.-------
Asian---- 6--
Afr. Amer./Black 487.5 487.6 0.1 489.8 1152Improved Below Target
Hispanic/Latino 489.1 490.9 1.8 490.5 973Met Target
Multi-race, Non-Hisp./Lat.---- 5--
Nat. Haw. or Pacif. Isl.-------
White---- 9--

Science achievement - MCAS Composite Performance Index (CPI) - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 58.1 49.6 -8.5 60.8 630Declined
Lowest Performing-------
High needs 52.4 43.6 -8.8 55.9 430Declined
Econ. Disadvantaged 52.1 42.4 -9.7 55.5 330Declined
EL and Former EL---- 15--
Students w/ disabilities---- 15--
Amer. Ind. or Alaska Nat.-------
Asian---- 1--
Afr. Amer./Black 57.5 45.7 -11.8 61.7 410Declined
Hispanic/Latino---- 17--
Multi-race, Non-Hisp./Lat.---- 2--
Nat. Haw. or Pacif. Isl.-------
White---- 2--

English language arts growth - Non-high school
Group 2019 Mean SGP N Points Reason
All Students 47.4 1672Typical Growth - Low
Lowest Performing 52.4 343Typical Growth - High
High needs 50.3 1183Typical Growth - High
Econ. Disadvantaged 51.3 863Typical Growth - High
EL and Former EL 52.9 603Typical Growth - High
Students w/ disabilities 47.5 342Typical Growth - Low
Amer. Ind. or Alaska Nat.----
Asian- 4--
Afr. Amer./Black 46.4 912Typical Growth - Low
Hispanic/Latino 47.0 622Typical Growth - Low
Multi-race, Non-Hisp./Lat.- 5--
Nat. Haw. or Pacif. Isl.----
White- 5--

Mathematics growth - Non-high school
Group 2019 Mean SGP N Points Reason
All Students 51.4 1683Typical Growth - High
Lowest Performing 52.2 343Typical Growth - High
High needs 50.6 1193Typical Growth - High
Econ. Disadvantaged 48.8 872Typical Growth - Low
EL and Former EL 53.6 613Typical Growth - High
Students w/ disabilities 45.9 342Typical Growth - Low
Amer. Ind. or Alaska Nat.----
Asian- 4--
Afr. Amer./Black 50.0 913Typical Growth - High
Hispanic/Latino 52.2 633Typical Growth - High
Multi-race, Non-Hisp./Lat.- 5--
Nat. Haw. or Pacif. Isl.----
White- 5--

Progress toward attaining English language proficiency - Non-high school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 38.9 68.1 29.2 42.9 724Exceeded Target
Lowest Performing-------
High needs-------
Econ. Disadvantaged-------
EL and Former EL 38.9 68.1 29.2 42.9 724Exceeded 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 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 11.8 13.4 1.6 10.3 3510Declined
Lowest Performing 5.9 20.6 14.7 1.3 340Declined
High needs 14.8 14.8 0.0 12.4 2561No Change
Econ. Disadvantaged 17.8 18.7 0.9 14.6 1710Declined
EL and Former EL 10.4 9.6 -0.8 6.9 1362Improved Below Target
Students w/ disabilities 11.3 23.0 11.7 7.7 610Declined
Amer. Ind. or Alaska Nat.-------
Asian---- 9--
Afr. Amer./Black 10.7 11.1 0.4 7.1 1711No Change
Hispanic/Latino 13.0 17.9 4.9 8.8 1450Declined
Multi-race, Non-Hisp./Lat.---- 7--
Nat. Haw. or Pacif. Isl.-------
White---- 19--

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 231 22798Yes 1 232 232100Yes 1 63 63100Yes 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 166 162 167 167 43 43 376 37299Yes1
Econ. Disadvantaged 120 120 121 121 33 33 274 274100Yes1
EL and Former EL 86 82 87 87 15 15 188 18498Yes1
Students w/ disabilities 46 46 46 46 15 15 107 107100Yes1
Amer. Ind. or Alaska Nat.-----------
Asian 6 4 6 6 1 1 13----
Afr. Amer./Black 115 115 115 115 41 41 271 271100Yes1
Hispanic/Latino 96 94 97 97 17 17 210 20899Yes1
Multi-race, Non-Hisp./Lat. 5 5 5 5 2 2 12----
Nat. Haw. or Pacif. Isl.-----------
White 9 9 9 9 2 2 20----

School Accountability Information
School Accountability classification
Conservatory Lab Charter SchoolNot requiring assistance or intervention


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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Interpretive Materials Interpretive Materials
Glossary of Accountability Terms Glossary of 2019 Accountability Terms

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