Massachusetts School and District Profiles

Wm Diamond Middle

Districts
Schools

2026

Accountability Report

2026 Official Accountability Report - Wm Diamond Middle

Organization Information

DISTRICT NAME
Lexington (01550000)

TITLE I STATUS
Non-Title I School

SCHOOL
Wm Diamond Middle (01550310)

GRADES SERVED
06,07,08

REGION
Coastal

FEDERAL DESIGNATION
-

Accountability Information

Overall classification

Not requiring assistance or intervention

Reason for classification

Meeting or exceeding targets

Progress toward improvement targets	Accountability percentile
82% - Meeting or exceeding targets	93

OVERALL RESULTS
STUDENT GROUP RESULTS
DETAILED DATA FOR EACH INDICATOR

Overall progress toward improvement targets

	2025	2026
Annual criterion-referenced target percentage	86%	79%
Weight	40%	60%
Cumulative Criterion-referenced target percentage (2025 x 40%) + (2026 x 60%)	82%
	Meeting or exceeding targets

2026 Points awarded

2026 Progress toward improvement targets
Indicator		All Students (Non-high school grades)			Lowest Performing Students (Non-high school grades)
Indicator		Points earned	Total possible points	Weight %	Points earned	Total possible points	Weight %
Achievement	English language arts achievement	4	4	-	2	4	-
	Mathematics achievement	4	4	-	3	4	-
	Science achievement	4	4	-	-	-	-
	Achievement total	12	12	60.0	5	8	67.5
Growth	English language arts growth	3	4	-	3	4	-
	Mathematics growth	3	4	-	3	4	-
	Growth total	6	8	20.0	6	8	22.5
High school completion	Four-year cohort graduation rate	-	-	-	-	-	-
	Extended engagement rate	-	-	-	-	-	-
	Annual dropout rate	-	-	-	-	-	-
	High school completion total	-	-	-	-	-	-
Progress toward attaining English language proficiency	English language proficiency total	4	4	10.0	-	-	-
Additional indicators	Chronic absenteeism	4	4	-	0	4	-
	Advanced coursework completion	-	-	-	-	-	-
	Additional indicators total	4	4	10.0	0	4	10.0
Weighted total		9.2	9.6	-	4.7	7.6	-
Percentage of possible points		96%		-	62%		-
2026 Annual criterion-referenced target percentage		79%

2025 Points awarded

2025 Progress toward improvement targets
Indicator		All Students (Non-high school grades)			Lowest Performing Students (Non-high school grades)
Indicator		Points earned	Total possible points	Weight %	Points earned	Total possible points	Weight %
Achievement	English language arts achievement	4	4	-	4	4	-
	Mathematics achievement	4	4	-	3	4	-
	Science achievement	4	4	-	-	-	-
	Achievement total	12	12	60.0	7	8	67.5
Growth	English language arts growth	3	4	-	3	4	-
	Mathematics growth	3	4	-	3	4	-
	Growth total	6	8	20.0	6	8	22.5
High school completion	Four-year cohort graduation rate	-	-	-	-	-	-
	Extended engagement rate	-	-	-	-	-	-
	Annual dropout rate	-	-	-	-	-	-
	High school completion total	-	-	-	-	-	-
Progress toward attaining English language proficiency	English language proficiency total	4	4	10.0	-	-	-
Additional indicators	Chronic absenteeism	0	4	-	0	4	-
	Advanced coursework completion	-	-	-	-	-	-
	Additional indicators total	0	4	10.0	0	4	10.0
Weighted total		8.8	9.6	-	6.1	7.6	-
Percentage of possible points		92%		-	80%		-
2025 Annual criterion-referenced target percentage		86%

Student group percentile

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

Overall progress toward improvement targets

	2025	2026
Annual criterion-referenced target percentage	72%	76%
Weight	40%	60%
Cumulative Criterion-referenced target percentage (2025 x 40%) + (2026 x 60%)	74%
	Substantial progress toward targets

2026 Points awarded

2026 Progress toward improvement targets
Indicator		High Needs Student Group (Non-high school grades)
Indicator		Points earned	Total possible points	Weight %
Achievement	English language arts achievement	3	4	-
	Mathematics achievement	3	4	-
	Science achievement	3	4	-
	Achievement total	9	12	67.5
Growth	English language arts growth	3	4	-
	Mathematics growth	3	4	-
	Growth total	6	8	22.5
High school completion	Four-year cohort graduation rate	-	-	-
	Extended engagement rate	-	-	-
	Annual dropout rate	-	-	-
	High school completion total	-	-	-
Progress toward attaining English language proficiency	English language proficiency total	-	-	-
Additional indicators	Chronic absenteeism	4	4	-
	Advanced coursework completion	-	-	-
	Additional indicators total	4	4	10.0
Weighted total		7.8	10.3	-
Percentage of possible points		76%		-
2026 Annual criterion-referenced target percentage		76%

2025 Points awarded

2025 Progress toward improvement targets
Indicator		High Needs Student Group (Non-high school grades)
Indicator		Points earned	Total possible points	Weight %
Achievement	English language arts achievement	3	4	-
	Mathematics achievement	3	4	-
	Science achievement	3	4	-
	Achievement total	9	12	67.5
Growth	English language arts growth	3	4	-
	Mathematics growth	3	4	-
	Growth total	6	8	22.5
High school completion	Four-year cohort graduation rate	-	-	-
	Extended engagement rate	-	-	-
	Annual dropout rate	-	-	-
	High school completion total	-	-	-
Progress toward attaining English language proficiency	English language proficiency total	-	-	-
Additional indicators	Chronic absenteeism	0	4	-
	Advanced coursework completion	-	-	-
	Additional indicators total	0	4	10.0
Weighted total		7.4	10.3	-
Percentage of possible points		72%		-
2025 Annual criterion-referenced target percentage		72%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - Non-high school
Group	2025 Achievement	2026 Achievement	Change	2026 Target	N	Points	Reason
All Students	515.2	513.4	-1.8	518.6	891	4	Recovery Path: Exceeded Target
Lowest Performing	481.2	482.9	1.7	485.3	133	2	Recovery Path: Improved Below Target
High Needs	498.7	496.4	-2.3	500.5	321	3	Recovery Path: Met Target
English Learners and Former English Learners	499.5	500.1	0.6	503.7	165	3	Recovery Path: Met Target
Low Income	499.1	495.2	-3.9	501.2	93	3	Path Forward: Met Target
Students with Disabilities	486.6	484.3	-2.3	488.5	150	0	Recovery Path: Declined
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	522.6	519.0	-3.6	525.7	425	4	Recovery Path: Exceeded Target
Black or African American	486.4	490.2	3.8	490.0	33	3	Recovery Path: Met Target
Hispanic or Latino	497.0	499.2	2.2	500.5	54	3	Recovery Path: Met Target
Multi-Race, Not Hispanic or Latino	519.7	516.8	-2.9	521.1	82	4	Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	511.9	509.7	-2.2	514.3	297	4	Recovery Path: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group	2025 Achievement	2026 Achievement	Change	2026 Target	N	Points	Reason
All Students	520.1	522.1	2.0	522.1	891	4	Recovery Path: Exceeded Target
Lowest Performing	490.2	491.9	1.7	496.2	133	3	Recovery Path: Met Target
High Needs	507.1	508.8	1.7	509.6	319	3	Path Forward: Met Target
English Learners and Former English Learners	510.6	515.7	5.1	512.7	165	4	Recovery Path: Exceeded Target
Low Income	505.3	508.2	2.9	507.7	93	3	Path Forward: Met Target
Students with Disabilities	494.1	495.4	1.3	497.3	148	3	Path Forward: Met Target
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	530.8	531.2	0.4	533.8	425	4	Path Forward: Exceeded Target
Black or African American	489.8	495.4	5.6	493.8	33	4	Recovery Path: Exceeded Target
Hispanic or Latino	498.9	504.1	5.2	502.0	54	4	Recovery Path: Exceeded Target
Multi-Race, Not Hispanic or Latino	523.1	524.6	1.5	524.6	82	4	Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	513.8	514.5	0.7	516.1	297	4	Recovery Path: Exceeded Target

Science achievement - MCAS average composite scaled score - Non-high school
Group	2025 Achievement	2026 Achievement	Change	2026 Target	N	Points	Reason
All Students	513.4	514.9	1.5	515.6	288	4	Path Forward: Exceeded Target
Lowest Performing	-	-	-	-	59	-	-
High Needs	503.7	499.8	-3.9	507.2	90	3	Path Forward: Met Target
English Learners and Former English Learners	501.0	503.3	2.3	505.2	38	3	Path Forward: Met Target
Low Income	500.2	505.8	5.6	504.6	25	4	Path Forward: Exceeded Target
Students with Disabilities	500.0	490.5	-9.5	504.2	44	3	Path Forward: Met Target
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	519.0	522.3	3.3	521.2	121	4	Path Forward: Exceeded Target
Black or African American	-	-	-	-	13	-	-
Hispanic or Latino	-	-	-	-	15	-	-
Multi-Race, Not Hispanic or Latino	510.4	515.6	5.2	512.0	32	4	Recovery Path: Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	512.4	510.7	-1.7	514.6	107	4	Path Forward: Exceeded Target

English language arts growth - Non-high school
Group	2026 Mean SGP	N	Points	Reason
All Students	50.4	848	3	Typical Growth - High
Lowest Performing	50.9	133	3	Typical Growth - High
High Needs	50.2	295	3	Typical Growth - High
English Learners and Former English Learners	55.5	155	3	Typical Growth - High
Low Income	50.1	81	3	Typical Growth - High
Students with Disabilities	44.8	137	2	Typical Growth - Low
American Indian or Alaska Native	-	-	-	-
Asian	52.3	396	3	Typical Growth - High
Black or African American	52.3	31	3	Typical Growth - High
Hispanic or Latino	52.4	52	3	Typical Growth - High
Multi-Race, Not Hispanic or Latino	52.4	82	3	Typical Growth - High
Native Hawaiian or Other Pacific Islander	-	-	-	-
White	46.7	287	2	Typical Growth - Low

Mathematics growth - Non-high school
Group	2026 Mean SGP	N	Points	Reason
All Students	56.9	852	3	Typical Growth - High
Lowest Performing	58.3	133	3	Typical Growth - High
High Needs	58.1	300	3	Typical Growth - High
English Learners and Former English Learners	62.5	161	4	Exceeded Typical Growth
Low Income	57.5	84	3	Typical Growth - High
Students with Disabilities	53.2	136	3	Typical Growth - High
American Indian or Alaska Native	-	-	-	-
Asian	59.7	400	3	Typical Growth - High
Black or African American	63.6	31	4	Exceeded Typical Growth
Hispanic or Latino	59.4	52	3	Typical Growth - High
Multi-Race, Not Hispanic or Latino	54.6	81	3	Typical Growth - High
Native Hawaiian or Other Pacific Islander	-	-	-	-
White	52.5	288	3	Typical Growth - High

Progress toward attaining English language proficiency - Non-high school
Group	2025 Rate (%)	2026 Rate (%)	Change	Target	N	Points	Reason
All Students	68.8	66.7	-2.1	74.2	27	4	Exceeded Target
Lowest Performing	-	-	-	-	-	-	-
High Needs	-	-	-	-	-	-	-
English Learners and Former English Learners	68.8	66.7	-2.1	74.2	27	4	Exceeded Target
Low Income	-	-	-	-	-	-	-
Students with Disabilities	-	-	-	-	-	-	-
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	-	-	-	-	-	-	-
Black or African American	-	-	-	-	-	-	-
Hispanic or Latino	-	-	-	-	-	-	-
Multi-Race, Not Hispanic or Latino	-	-	-	-	-	-	-
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	-	-	-	-	-	-	-

Chronic absenteeism - Non-high school
Group	2025 Rate (%)	2026 Rate (%)	Change	Target	N	Points	Reason
All Students	13.8	9.2	-4.6	12.7	920	4	Exceeded Target
Lowest Performing	7.2	12.0	4.8	3.9	133	0	Declined
High Needs	18.4	13.6	-4.8	16.3	337	4	Exceeded Target
English Learners and Former English Learners	19.9	9.2	-10.7	16.9	173	4	Exceeded Target
Low Income	25.3	17.6	-7.7	21.0	102	4	Exceeded Target
Students with Disabilities	16.2	15.9	-0.3	13.7	151	2	Improved Below Target
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	11.4	6.4	-5.0	9.3	437	4	Exceeded Target
Black or African American	33.3	13.9	-19.4	30.3	36	4	Exceeded Target
Hispanic or Latino	24.3	20.7	-3.6	20.1	58	2	Improved Below Target
Multi-Race, Not Hispanic or Latino	14.8	12.0	-2.8	13.7	83	4	Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	10.9	9.8	-1.1	9.7	306	3	Met Target

Assessment participation - All students
Group	English language arts					Mathematics					Science
Group	Enrolled	Assessed	%	Met Target?	Years in Rate	Enrolled	Assessed	%	Met Target?	Years in Rate	Enrolled	Assessed	%	Met Target?	Years in Rate
All Students	913	907	99	Yes	1	914	908	99	Yes	1	297	291	98	Yes	1

Assessment participation - Student Group
Group	English language arts		Mathematics		Science		Overall
Group	Enrolled	Assessed	Enrolled	Assessed	Enrolled	Assessed	Total Enrolled	Total Assessed	%	Met Target?	Years in Rate
High Needs	337	334	338	333	97	92	772	759	98	Yes	1
English Learners and Former English Learners	171	171	172	172	39	39	382	382	100	Yes	1
Low Income	99	99	100	100	27	26	226	225	100	Yes	1
Students with Disabilities	157	154	157	152	50	45	364	351	96	Yes	1
American Indian or Alaska Native	-	-	-	-	-	-	-	-	-	-	-
Asian	433	432	434	433	125	123	992	988	100	Yes	1
Black or African American	34	34	34	34	13	13	81	81	100	Yes	1
Hispanic or Latino	58	58	58	58	16	16	132	132	100	Yes	1
Multi-Race, Not Hispanic or Latino	83	82	83	82	33	32	199	196	98	Yes	1
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-	-	-	-	-
White	305	301	305	301	110	107	720	709	98	Yes	1

About this report

About the Data

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

Glossary of Accountability Terms