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Gibbs School
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2024
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2024 Official Accountability Report - Gibbs School
Organization Information
DISTRICT NAME
Arlington (00100000)		TITLE I STATUS
Non-Title I School
SCHOOL
Gibbs School (00100305)		GRADES SERVED
06
REGION
Coastal		FEDERAL DESIGNATION
-

Accountability Information

Overall classificationNot requiring assistance or intervention
Reason for classification
Substantial progress toward targets
Progress toward improvement targetsAccountability percentile
73% - Substantial progress toward targets84

Overall progress toward improvement targets

 20232024
Annual criterion-referenced target percentage75%72%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2023 x 40%) + (2024 x 60%)		73%
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 achievement44-44-
Mathematics achievement34-24-
Science achievement------
Achievement total7867.56867.5
GrowthEnglish language arts growth24-24-
Mathematics growth24-24-
Growth total4822.54822.5
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 absenteeism34-04-
Advanced coursework completion------
Additional indicators total3410.00410.0
Weighted total5.97.6-5.07.6-
Percentage of possible points 78%-66%-
2024 Annual criterion-referenced target percentage72%

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 achievement34----
Mathematics achievement34----
Science achievement------
Achievement total6867.5---
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 absenteeism34----
Advanced coursework completion------
Additional indicators total3410.0---
Weighted total5.77.6----
Percentage of possible points 75%---
2023 Annual criterion-referenced target percentage75%

Student group percentile

This group's overall performance relative to the performance of the same student group in schools serving similar grades
68

Overall progress toward improvement targets

 20232024
Annual criterion-referenced target percentage18%83%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2023 x 40%) + (2024 x 60%)		57%
Substantial 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 achievement44-
Mathematics achievement44-
Science achievement---
Achievement total8867.5
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 total6.37.6-
Percentage of possible points 83%-
2024 Annual criterion-referenced target percentage83%

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 achievement04-
Mathematics achievement04-
Science achievement---
Achievement total0867.5
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 absenteeism34-
Advanced coursework completion---
Additional indicators total3410.0
Weighted total1.47.6-
Percentage of possible points 18%-
2023 Annual criterion-referenced target percentage18%

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 505.3 510.3 5.0 509.0 4574Recovery Path: Exceeded Target
Lowest Performing 474.7 480.7 6.0 479.8 1044Path Forward: Exceeded Target
High needs 484.1 489.3 5.2 485.1 1344Recovery Path: Exceeded Target
Low income 479.3 488.1 8.8 481.7 494Recovery Path: Exceeded Target
EL and Former EL 476.9 488.2 11.3 480.1 384Recovery Path: Exceeded Target
Students w/ disabilities 481.8 484.8 3.0 484.2 844Path Forward: Exceeded Target
Amer. Ind. or Alaska Nat.-------
Asian 511.2 505.4 -5.8 513.5 443Recovery Path: Met Target
Afr. Amer./Black---- 14--
Hispanic/Latino 489.4 495.6 6.2 491.9 344Recovery Path: Exceeded Target
Multi-race, Non-Hisp./Lat.---- 48--
Nat. Haw. or Pacif. Isl.-------
White 506.8 513.1 6.3 509.2 3174Recovery Path: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2023 Achievement 2024 Achievement Change 2024 Target N Points Reason
All Students 507.9 509.1 1.2 509.6 4553Recovery Path: Met Target
Lowest Performing 484.2 485.3 1.1 489.3 1032Path Forward: Improved Below Target
High needs 490.8 495.1 4.3 493.3 1334Path Forward: Exceeded Target
Low income 487.8 491.3 3.5 489.7 484Recovery Path: Exceeded Target
EL and Former EL 487.9 498.5 10.6 490.1 384Recovery Path: Exceeded Target
Students w/ disabilities 488.4 489.4 1.0 491.6 832Path Forward: Improved Below Target
Amer. Ind. or Alaska Nat.-------
Asian 520.1 513.4 -6.7 523.1 444Path Forward: Exceeded Target
Afr. Amer./Black---- 14--
Hispanic/Latino 494.4 500.5 6.1 497.5 344Recovery Path: Exceeded Target
Multi-race, Non-Hisp./Lat.---- 48--
Nat. Haw. or Pacif. Isl.-------
White 507.7 509.9 2.2 509.4 3153Recovery Path: Met Target

Science achievement - MCAS average composite scaled score - Non-high school
Group 2023 Achievement 2024 Achievement Change 2024 Target N Points Reason
All Students-------
Lowest Performing-------
High needs-------
Low income-------
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-------

English language arts growth - Non-high school
Group 2024 Mean SGP N Points Reason
All Students 48.5 4372Typical Growth - Low
Lowest Performing 47.6 1042Typical Growth - Low
High needs 44.1 1262Typical Growth - Low
Low income 42.3 452Typical Growth - Low
EL and Former EL 47.0 352Typical Growth - Low
Students w/ disabilities 43.3 822Typical Growth - Low
Amer. Ind. or Alaska Nat.----
Asian 51.2 433Typical Growth - High
Afr. Amer./Black- 13--
Hispanic/Latino 41.1 302Typical Growth - Low
Multi-race, Non-Hisp./Lat.- 44--
Nat. Haw. or Pacif. Isl.----
White 48.6 3072Typical Growth - Low

Mathematics growth - Non-high school
Group 2024 Mean SGP N Points Reason
All Students 49.1 4362Typical Growth - Low
Lowest Performing 42.3 1032Typical Growth - Low
High needs 42.6 1252Typical Growth - Low
Low income 43.4 442Typical Growth - Low
EL and Former EL 43.3 372Typical Growth - Low
Students w/ disabilities 38.4 791Low Growth
Amer. Ind. or Alaska Nat.----
Asian 51.3 443Typical Growth - High
Afr. Amer./Black- 13--
Hispanic/Latino 48.3 302Typical Growth - Low
Multi-race, Non-Hisp./Lat.- 44--
Nat. Haw. or Pacif. Isl.----
White 48.4 3052Typical Growth - Low

Progress toward attaining English language proficiency - Non-high school
Group 2023 Rate (%) 2024 Rate (%) Change Target N Points Reason
All Students-------
Lowest Performing-------
High needs-------
Low income-------
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 2023 Rate (%) 2024 Rate (%) Change Target N Points Reason
All Students 8.9 8.5 -0.4 7.8 4713Met Target
Lowest Performing 10.4 11.5 1.1 7.1 1040Declined
High needs 13.0 15.0 2.0 10.9 1400Declined
Low income 14.3 22.6 8.3 10.0 530Declined
EL and Former EL 9.1 11.6 2.5 6.1 430Declined
Students w/ disabilities 16.8 15.7 -1.1 14.3 832Improved Below Target
Amer. Ind. or Alaska Nat.-------
Asian 3.4 6.1 2.7 1.3 494Exceeded Target
Afr. Amer./Black---- 15--
Hispanic/Latino 11.1 11.8 0.7 6.9 340Declined
Multi-race, Non-Hisp./Lat.---- 51--
Nat. Haw. or Pacif. Isl.-------
White 8.7 8.4 -0.3 7.5 3223Met 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 463 461100Yes 1 462 45999Yes 1 0----

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 137 137 137 136 0- 274 273100Yes1
Low income 52 52 52 51 0- 104 10399Yes1
EL and Former EL 40 40 40 40 0- 80 80100Yes1
Students w/ disabilities 84 84 84 83 0- 168 16799Yes1
Amer. Ind. or Alaska Nat.-----------
Asian 45 45 45 45 0- 90 90100Yes1
Afr. Amer./Black 15 15 15 15 0- 30----
Hispanic/Latino 34 34 34 34 0- 68 68100Yes1
Multi-race, Non-Hisp./Lat. 49 49 49 49 0- 98 98100Yes1
Nat. Haw. or Pacif. Isl.-----------
White 320 318 319 316 0- 639 63499Yes1


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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