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Mystic Valley Regional Charter School
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2019 Official Accountability Report - Mystic Valley Regional Charter School
Organization Information
DISTRICT NAME
Mystic Valley Regional Charter (District) (04700000)		TITLE I STATUS
Non-Title I School
SCHOOL
Mystic Valley Regional Charter School (04700105)		GRADES SERVED
K,01,02,03,04,05,06,07,08,09,10,11,12
REGION
Coastal		FEDERAL DESIGNATION
-

Accountability Information

Overall classificationNot requiring assistance or intervention
Reason for classification
Substantial progress toward targets
Progress toward improvement targetsAccountability percentile
60% - Substantial progress toward targets91

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage51%66%
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)		 All students
(High school grades)		 Lowest performing students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-24-44-44-
Mathematics achievement34-24-44-44-
Science achievement14----44-14-
Achievement total81260.04867.5121247.591267.5
GrowthEnglish language arts growth24-34-24-04-
Mathematics growth24-24-44-34-
Growth total4820.05822.56822.53822.5
High school completionFour-year cohort graduation rate------34----
Extended engagement rate------44----
Annual dropout rate------44----
High school completion total------111220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total4410.0---------
Additional indicatorsChronic absenteeism44-44-44-44-
Advanced coursework completion------44----
Additional indicators total4410.04410.08810.04410.0
Weighted total6.49.6-4.27.6-10.110.7-7.210.3-
Percentage of possible points 67%-55%-94%-70%-
Percentage of possible points by gradespan61%
Weight of non-high school results:76%		82%
Weight of high school results:24%
2019 Annual criterion-referenced target percentage66%

2018 Points awarded

2018 Progress toward improvement targets
Indicator All students
(Non-high school grades)		 Lowest performing students
(Non-high school grades)		 All students
(High school grades)		 Lowest performing students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement14-34-44-44-
Mathematics achievement04-04-44-44-
Science achievement14----44-04-
Achievement total21260.03867.5121247.581267.5
GrowthEnglish language arts growth34-34-44-24-
Mathematics growth24-24-44-44-
Growth total5820.05822.58822.56822.5
High school completionFour-year cohort graduation rate------44----
Extended engagement rate------44----
Annual dropout rate------44----
High school completion total------121220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total0410.0---------
Additional indicatorsChronic absenteeism44-44-44-44-
Advanced coursework completion------44----
Additional indicators total4410.04410.08810.04410.0
Weighted total2.69.6-3.67.6-10.710.7-7.210.3-
Percentage of possible points 27%-47%-100%-70%-
Percentage of possible points by gradespan37%
Weight of non-high school results:70%		85%
Weight of high school results:30%
2018 Annual criterion-referenced target percentage51%

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage61%72%
Weight40%60%
Cumulative criterion-referenced target percentage
(2018 x 40%) + (2019 x 60%)		68%
Substantial progress toward targets

2019 Points awarded

2019 Progress toward improvement targets
Indicator High needs Subgroup
(Non-high school grades)		 High needs Subgroup
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-44-
Mathematics achievement44-44-
Science achievement04-34-
Achievement total81267.5111247.5
GrowthEnglish language arts growth34-14-
Mathematics growth24-44-
Growth total5822.55822.5
High school completionFour-year cohort graduation rate---34-
Extended engagement rate---44-
Annual dropout rate---44-
High school completion total---111220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism44-44-
Advanced coursework completion---44-
Additional indicators total4410.08810.0
Weighted total6.910.3-9.410.7-
Percentage of possible points 67%-88%-
Percentage of possible points by gradespan67%
Weight of non-high school results:76%		88%
Weight of high school results:24%
2019 Annual criterion-referenced target percentage72%

2018 Points awarded

2018 Progress toward improvement targets
Indicator High needs Subgroup
(Non-high school grades)		 High needs Subgroup
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement34-44-
Mathematics achievement04-44-
Science achievement24-34-
Achievement total51267.5111247.5
GrowthEnglish language arts growth34-34-
Mathematics growth24-44-
Growth total5822.57822.5
High school completionFour-year cohort graduation rate---44-
Extended engagement rate---34-
Annual dropout rate---44-
High school completion total---111220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism44-44-
Advanced coursework completion---44-
Additional indicators total4410.08810.0
Weighted total4.910.3-9.810.7-
Percentage of possible points 48%-92%-
Percentage of possible points by gradespan48%
Weight of non-high school results:70%		92%
Weight of high school results:30%
2018 Annual criterion-referenced target percentage61%

Subgroup percentile

This group's overall performance relative to the performance of the same subgroup in schools serving similar grades
87

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 505.8 507.4 1.6 506.8 7804Exceeded Target
Lowest Performing 487.0 490.3 3.3 491.1 1602Improved Below Target
High needs 499.8 502.6 2.8 500.8 2634Exceeded Target
Econ. Disadvantaged---- 162--
EL and Former EL---- 53--
Students w/ disabilities---- 106--
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 156--
Afr. Amer./Black---- 160--
Hispanic/Latino---- 72--
Multi-race, Non-Hisp./Lat.---- 33--
Nat. Haw. or Pacif. Isl.-------
White 507.4 509.5 2.1 508.4 3584Exceeded Target

English language arts achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 100.0 99.7 -0.3 100.0 884Exceeded Target
Lowest Performing 100.0 98.9 -1.1 100.0 224Exceeded Target
High needs 100.0 99.1 -0.9 100.0 274Exceeded Target
Econ. Disadvantaged---- 15--
EL and Former EL-------
Students w/ disabilities---- 15--
Amer. Ind. or Alaska Nat.-------
Asian---- 22--
Afr. Amer./Black---- 11--
Hispanic/Latino---- 3--
Multi-race, Non-Hisp./Lat.---- 2--
Nat. Haw. or Pacif. Isl.-------
White 100.0 99.5 -0.5 100.0 504Exceeded Target

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 503.4 504.2 0.8 504.4 7803Met Target
Lowest Performing 483.4 485.2 1.8 486.6 1612Improved Below Target
High needs 495.0 497.7 2.7 496.3 2634Exceeded Target
Econ. Disadvantaged---- 162--
EL and Former EL---- 53--
Students w/ disabilities---- 106--
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 156--
Afr. Amer./Black---- 160--
Hispanic/Latino---- 72--
Multi-race, Non-Hisp./Lat.---- 33--
Nat. Haw. or Pacif. Isl.-------
White 505.0 506.3 1.3 506.0 3583Met Target

Mathematics achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 99.7 99.4 -0.3 100.0 884Exceeded Target
Lowest Performing 99.0 97.7 -1.3 100.0 224Exceeded Target
High needs 99.1 100.0 0.9 100.0 274Exceeded Target
Econ. Disadvantaged---- 15--
EL and Former EL-------
Students w/ disabilities---- 15--
Amer. Ind. or Alaska Nat.-------
Asian---- 22--
Afr. Amer./Black---- 11--
Hispanic/Latino---- 3--
Multi-race, Non-Hisp./Lat.---- 2--
Nat. Haw. or Pacif. Isl.-------
White 100.0 100.0 0.0 100.0 504Exceeded Target

Science achievement - MCAS Composite Performance Index (CPI) - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 73.9 72.9 -1.0 76.1 2581No Change
Lowest Performing-------
High needs 67.1 62.8 -4.3 70.4 900Declined
Econ. Disadvantaged---- 56--
EL and Former EL---- 10--
Students w/ disabilities---- 42--
Amer. Ind. or Alaska Nat.-------
Asian---- 56--
Afr. Amer./Black---- 42--
Hispanic/Latino---- 23--
Multi-race, Non-Hisp./Lat.---- 10--
Nat. Haw. or Pacif. Isl.-------
White 76.5 75.2 -1.3 78.4 1271No Change

Science achievement - MCAS Composite Performance Index (CPI) - High school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 97.9 97.7 -0.2 99.6 884Exceeded Target
Lowest Performing 92.0 90.9 -1.1 94.3 221No Change
High needs 94.8 95.4 0.6 97.4 273Met Target
Econ. Disadvantaged---- 15--
EL and Former EL-------
Students w/ disabilities---- 15--
Amer. Ind. or Alaska Nat.-------
Asian---- 22--
Afr. Amer./Black---- 11--
Hispanic/Latino---- 3--
Multi-race, Non-Hisp./Lat.---- 2--
Nat. Haw. or Pacif. Isl.-------
White 97.8 98.0 0.2 99.5 504Exceeded Target

English language arts growth - Non-high school
Group 2019 Mean SGP N Points Reason
All Students 49.7 6462Typical Growth - Low
Lowest Performing 50.5 1543Typical Growth - High
High needs 50.5 2093Typical Growth - High
Econ. Disadvantaged- 130--
EL and Former EL- 28--
Students w/ disabilities- 88--
Amer. Ind. or Alaska Nat.- 1--
Asian- 129--
Afr. Amer./Black- 127--
Hispanic/Latino- 56--
Multi-race, Non-Hisp./Lat.- 29--
Nat. Haw. or Pacif. Isl.----
White 49.7 3042Typical Growth - Low

English language arts growth - High school
Group 2019 Mean SGP N Points Reason
All Students 41.2 882Typical Growth - Low
Lowest Performing 23.4 220Very Low Growth
High needs 34.6 271Low Growth
Econ. Disadvantaged- 15--
EL and Former EL----
Students w/ disabilities- 15--
Amer. Ind. or Alaska Nat.----
Asian- 22--
Afr. Amer./Black- 11--
Hispanic/Latino- 3--
Multi-race, Non-Hisp./Lat.- 2--
Nat. Haw. or Pacif. Isl.----
White 40.5 502Typical Growth - Low

Mathematics growth - Non-high school
Group 2019 Mean SGP N Points Reason
All Students 48.0 6462Typical Growth - Low
Lowest Performing 46.4 1552Typical Growth - Low
High needs 46.1 2092Typical Growth - Low
Econ. Disadvantaged- 130--
EL and Former EL- 28--
Students w/ disabilities- 88--
Amer. Ind. or Alaska Nat.- 1--
Asian- 129--
Afr. Amer./Black- 127--
Hispanic/Latino- 56--
Multi-race, Non-Hisp./Lat.- 29--
Nat. Haw. or Pacif. Isl.----
White 46.9 3042Typical Growth - Low

Mathematics growth - High school
Group 2019 Mean SGP N Points Reason
All Students 72.9 884Exceeded Typical Growth
Lowest Performing 56.7 223Typical Growth - High
High needs 71.3 274Exceeded Typical Growth
Econ. Disadvantaged- 15--
EL and Former EL----
Students w/ disabilities- 15--
Amer. Ind. or Alaska Nat.----
Asian- 22--
Afr. Amer./Black- 11--
Hispanic/Latino- 3--
Multi-race, Non-Hisp./Lat.- 2--
Nat. Haw. or Pacif. Isl.----
White 70.1 504Exceeded Typical Growth

Four-year cohort graduation rate - High school
Group 2017 Rate (%) 2018 Rate (%) Change Target (%) N Points Reason
All Students 100.0 96.7 -3.3 100.0 923Met Target
Lowest Performing-------
High needs 100.0 97.1 -2.9 100.0 353Met Target
Econ. Disadvantaged---- 22--
EL and Former EL-------
Students w/ disabilities---- 16--
Amer. Ind. or Alaska Nat.---- 1--
Asian---- 15--
Afr. Amer./Black---- 12--
Hispanic/Latino---- 6--
Multi-race, Non-Hisp./Lat.---- 5--
Nat. Haw. or Pacif. Isl.-------
White 100.0 96.2 -3.8 100.0 533Met Target

Extended engagement rate - High school
Group 2016 Rate (%) 2017 Rate (%) Change Target (%) N Points Reason
All Students 99.0 100.0 1.0 100.0 964Exceeded Target
Lowest Performing-------
High needs 97.6 100.0 2.4 100.0 404Exceeded Target
Econ. Disadvantaged---- 29--
EL and Former EL-------
Students w/ disabilities---- 16--
Amer. Ind. or Alaska Nat.-------
Asian---- 13--
Afr. Amer./Black---- 24--
Hispanic/Latino---- 3--
Multi-race, Non-Hisp./Lat.---- 3--
Nat. Haw. or Pacif. Isl.-------
White 100.0 100.0 0.0 100.0 534Exceeded Target

Annual dropout rate - High school
Group 2017 Rate (%) 2018 Rate (%) Change Target (%) N Points Reason
All Students 0.0 0.0 0.0 1.0 3654Exceeded Target
Lowest Performing-------
High needs 0.0 0.0 0.0 1.0 1064Exceeded Target
Econ. Disadvantaged---- 67--
EL and Former EL-------
Students w/ disabilities---- 47--
Amer. Ind. or Alaska Nat.---- 3--
Asian---- 72--
Afr. Amer./Black---- 50--
Hispanic/Latino---- 19--
Multi-race, Non-Hisp./Lat.---- 13--
Nat. Haw. or Pacif. Isl.-------
White 0.0 0.0 0.0 1.0 2084Exceeded Target

Progress toward attaining English language proficiency - Non-high school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 57.7 87.1 29.4 61.7 314Exceeded Target
Lowest Performing-------
High needs-------
Econ. Disadvantaged-------
EL and Former EL---- 31--
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-------

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 - Non-high school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 1.9 2.7 0.8 0.8 1,0944Exceeded Target
Lowest Performing 0.6 2.5 1.9 0.0 1614Exceeded Target
High needs 2.7 3.1 0.4 0.6 3934Exceeded Target
Econ. Disadvantaged---- 185--
EL and Former EL---- 91--
Students w/ disabilities---- 151--
Amer. Ind. or Alaska Nat.---- 2--
Asian---- 223--
Afr. Amer./Black---- 214--
Hispanic/Latino---- 111--
Multi-race, Non-Hisp./Lat.---- 51--
Nat. Haw. or Pacif. Isl.-------
White 2.9 3.9 1.0 1.7 4934Exceeded Target

Chronic absenteeism - High school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 3.3 2.9 -0.4 2.2 3464Exceeded Target
Lowest Performing 0.0 0.0 0.0 0.0 224Exceeded Target
High needs 5.0 1.0 -4.0 1.9 1034Exceeded Target
Econ. Disadvantaged---- 49--
EL and Former EL-------
Students w/ disabilities---- 47--
Amer. Ind. or Alaska Nat.---- 2--
Asian---- 69--
Afr. Amer./Black---- 48--
Hispanic/Latino---- 17--
Multi-race, Non-Hisp./Lat.---- 9--
Nat. Haw. or Pacif. Isl.-------
White 3.8 4.0 0.2 2.4 2014Exceeded Target

Advanced coursework completion - High school
Group 2018 Rate (%) 2019 Rate (%) Change Target N Points Reason
All Students 97.8 95.9 -1.9 100.0 1714Exceeded Target
Lowest Performing-------
High needs 96.4 94.6 -1.8 100.0 564Exceeded Target
Econ. Disadvantaged---- 36--
EL and Former EL-------
Students w/ disabilities---- 25--
Amer. Ind. or Alaska Nat.---- 2--
Asian---- 35--
Afr. Amer./Black---- 23--
Hispanic/Latino---- 9--
Multi-race, Non-Hisp./Lat.---- 5--
Nat. Haw. or Pacif. Isl.-------
White 97.0 94.8 -2.2 99.8 974Exceeded 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 885 884100Yes 1 883 883100Yes 1 353 353100Yes 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 298 298 297 297 120 120 715 715100Yes1
Econ. Disadvantaged 181 181 180 180 71 71 432 432100Yes1
EL and Former EL 57 57 57 57 12 12 126 126100Yes1
Students w/ disabilities 123 123 122 122 58 58 303 303100Yes1
Amer. Ind. or Alaska Nat. 1 1 1 1-- 2----
Asian 179 179 179 179 78 78 436 436100Yes1
Afr. Amer./Black 174 174 174 174 56 56 404 404100Yes1
Hispanic/Latino 75 75 75 75 26 26 176 176100Yes1
Multi-race, Non-Hisp./Lat. 36 36 35 35 12 12 83 83100Yes1
Nat. Haw. or Pacif. Isl.-----------
White 420 419 419 419 181 181 1,020 1,019100Yes1


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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