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Thomas Ditson
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2019 Official Accountability Report - Thomas Ditson
Organization Information
DISTRICT NAME
Billerica (00310000)		TITLE I STATUS
Title I School
SCHOOL
Thomas Ditson (00310005)		GRADES SERVED
K,01,02,03,04,05
REGION
Coastal		FEDERAL DESIGNATION
-

Accountability Information

Overall classificationNot requiring assistance or intervention
Reason for classification
Meeting or exceeding targets
Progress toward improvement targetsAccountability percentile
75% - Meeting or exceeding targets54

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage67%80%
Weight40%60%
Cumulative criterion-referenced target percentage
(2018 x 40%) + (2019 x 60%)		75%
Meeting or exceeding 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 achievement44-24-
Mathematics achievement44-44-
Science achievement34----
Achievement total111267.56867.5
GrowthEnglish language arts growth34-34-
Mathematics growth34-34-
Growth total6822.56822.5
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 absenteeism04-24-
Advanced coursework completion------
Additional indicators total0410.02410.0
Weighted total8.810.3-5.67.6-
Percentage of possible points 85%-74%-
Criterion-referenced target percentage80%

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 achievement04-24-
Science achievement44----
Achievement total81267.56867.5
GrowthEnglish language arts growth24-34-
Mathematics growth24-24-
Growth total4822.55822.5
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 absenteeism34-14-
Advanced coursework completion------
Additional indicators total3410.01410.0
Weighted total6.610.3-5.37.6-
Percentage of possible points 64%-70%-
Criterion-referenced target percentage67%

Overall progress toward improvement targets

 20182019
Annual criterion-referenced target percentage61%85%
Weight40%60%
Cumulative criterion-referenced target percentage
(2018 x 40%) + (2019 x 60%)		76%
Meeting or exceeding 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 achievement34-
Mathematics achievement44-
Science achievement44-
Achievement total111267.5
GrowthEnglish language arts growth24-
Mathematics growth34-
Growth total5822.5
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 absenteeism24-
Advanced coursework completion---
Additional indicators total2410.0
Weighted total8.810.3-
Percentage of possible points 85%-
2019 Annual criterion-referenced target percentage85%

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 achievement04-
Science achievement44-
Achievement total81267.5
GrowthEnglish language arts growth24-
Mathematics growth24-
Growth total4822.5
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 absenteeism04-
Advanced coursework completion---
Additional indicators total0410.0
Weighted total6.310.3-
Percentage of possible points 61%-
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
56

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 504.3 506.7 2.4 505.3 2564Exceeded Target
Lowest Performing 486.0 489.0 3.0 491.1 422Improved Below Target
High needs 494.0 495.6 1.6 495.4 943Met Target
Econ. Disadvantaged 499.0 503.2 4.2 500.0 404Exceeded Target
EL and Former EL---- 15--
Students w/ disabilities 484.8 488.9 4.1 486.6 604Exceeded Target
Amer. Ind. or Alaska Nat.-------
Asian 515.6 516.8 1.2 516.9 244Exceeded Target
Afr. Amer./Black---- 13--
Hispanic/Latino---- 21--
Multi-race, Non-Hisp./Lat.---- 14--
Nat. Haw. or Pacif. Isl.-------
White 503.4 505.6 2.2 504.7 1844Exceeded Target

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 498.9 501.9 3.0 500.5 2574Exceeded Target
Lowest Performing 476.2 483.2 7.0 479.9 424Exceeded Target
High needs 488.0 493.2 5.2 489.5 954Exceeded Target
Econ. Disadvantaged 492.2 499.1 6.9 493.3 414Exceeded Target
EL and Former EL---- 15--
Students w/ disabilities 477.9 487.9 10.0 479.7 604Exceeded Target
Amer. Ind. or Alaska Nat.-------
Asian 511.9 511.0 -0.9 514.0 253Met Target
Afr. Amer./Black---- 13--
Hispanic/Latino---- 21--
Multi-race, Non-Hisp./Lat.---- 14--
Nat. Haw. or Pacif. Isl.-------
White 498.2 500.9 2.7 499.7 1844Exceeded Target

Science achievement - MCAS Composite Performance Index (CPI) - Non-high school
Group 2018 Achievement 2019 Achievement Change 2019 Target N Points Reason
All Students 74.0 75.9 1.9 76.7 853Met Target
Lowest Performing-------
High needs 58.3 68.8 10.5 61.8 324Exceeded Target
Econ. Disadvantaged---- 16--
EL and Former EL---- 3--
Students w/ disabilities---- 18--
Amer. Ind. or Alaska Nat.-------
Asian---- 6--
Afr. Amer./Black---- 3--
Hispanic/Latino---- 6--
Multi-race, Non-Hisp./Lat.---- 4--
Nat. Haw. or Pacif. Isl.-------
White 74.0 75.4 1.4 76.9 662Improved Below Target

English language arts growth - Non-high school
Group 2019 Mean SGP N Points Reason
All Students 50.2 1773Typical Growth - High
Lowest Performing 51.9 423Typical Growth - High
High needs 49.3 632Typical Growth - Low
Econ. Disadvantaged 52.3 323Typical Growth - High
EL and Former EL- 10--
Students w/ disabilities 46.6 372Typical Growth - Low
Amer. Ind. or Alaska Nat.----
Asian- 15--
Afr. Amer./Black- 5--
Hispanic/Latino- 14--
Multi-race, Non-Hisp./Lat.- 12--
Nat. Haw. or Pacif. Isl.----
White 49.0 1312Typical Growth - Low

Mathematics growth - Non-high school
Group 2019 Mean SGP N Points Reason
All Students 51.6 1783Typical Growth - High
Lowest Performing 54.0 423Typical Growth - High
High needs 51.1 643Typical Growth - High
Econ. Disadvantaged 50.8 323Typical Growth - High
EL and Former EL- 11--
Students w/ disabilities 50.8 373Typical Growth - High
Amer. Ind. or Alaska Nat.----
Asian- 16--
Afr. Amer./Black- 5--
Hispanic/Latino- 14--
Multi-race, Non-Hisp./Lat.- 12--
Nat. Haw. or Pacif. Isl.----
White 49.0 1312Typical Growth - Low

Progress toward attaining English language proficiency - Non-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 3.8 4.7 0.9 2.3 4250Declined
Lowest Performing 7.1 4.8 -2.3 2.5 422Improved Below Target
High needs 7.6 6.1 -1.5 5.2 1482Improved Below Target
Econ. Disadvantaged 8.2 7.1 -1.1 5.0 702Improved Below Target
EL and Former EL---- 26--
Students w/ disabilities 8.1 3.9 -4.2 4.5 774Exceeded Target
Amer. Ind. or Alaska Nat.-------
Asian 0.0 2.5 2.5 0.0 404Exceeded Target
Afr. Amer./Black---- 22--
Hispanic/Latino---- 27--
Multi-race, Non-Hisp./Lat.---- 21--
Nat. Haw. or Pacif. Isl.-------
White 3.9 4.8 0.9 2.1 3150Declined

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 265 264100Yes 1 265 265100Yes 1 87 87100Yes 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 103 102 103 103 34 34 240 239100Yes1
Econ. Disadvantaged 45 44 45 45 17 17 107 10699Yes1
EL and Former EL 18 18 18 18 5 5 41----
Students w/ disabilities 63 63 63 63 18 18 144 144100Yes1
Amer. Ind. or Alaska Nat.-----------
Asian 29 28 29 29 8 8 66 6598Yes1
Afr. Amer./Black 14 14 14 14 3 3 31----
Hispanic/Latino 21 21 21 21 6 6 48 48100Yes1
Multi-race, Non-Hisp./Lat. 15 15 15 15 4 4 34----
Nat. Haw. or Pacif. Isl.-----------
White 186 186 186 186 66 66 438 438100Yes1


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.


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

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