How does Endeavour Middle compare to other middle schools in Lancaster?

Endeavour Middle has a Scope Score of 12.8/100, ranked #1651 among California middle schools. 2% of students exceed standard, with a total of 1,494 students tested across grades and subjects.

What percentage of students exceed standards at Endeavour Middle?

1.8% of students at Endeavour Middle exceed the state standard on CAASPP assessments, while 11.6% meet or exceed it. The gap between these two numbers reveals whether the school pushes students beyond basic proficiency.

Is Endeavour Middle improving or declining?

Based on CAASPP data, Endeavour Middle's proficiency rate decreases by 0.6 percentage points from Grade 6 to grade 8 growth. This pattern in test scores may reflect a variety of factors beyond the school itself.

What is the chronic absenteeism rate at Endeavour Middle?

28.2% of students at Endeavour Middle are chronically absent (missing 10% or more of school days). This metric reflects school culture and family engagement, and is weighted at 15% in the Scope Score.

Endeavour Middle

Middle School

Lancaster Elementary LancasterLos Angeles County93536

📍 43755 45th Street, West

Scope Score

out of 100

State Rank

of 1,714 California middle schools

🌱

Building Momentum

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Scope Scores are SchoolScope's analysis of public data from the California Dept. of Education (CAASPP, chronic absenteeism, suspension rates). They are not official CDE ratings and should not be the sole basis for school decisions. See methodology.

School overview

Enrollment

780 students

Student-Teacher Ratio

22:1

Free/Reduced Lunch

81%

Teachers

35 full-time

Dashboard indicators

How this school's scores changed from last year to this year

ELA Year-over-Year

Declined

-8.4 pts DFS change

Math Year-over-Year

Increased

+3.9 pts DFS change

EL Proficiency (ELPAC)

23.2%

English learners at Level 4 (Well Developed) · 69 tested

Data source: California School Dashboard 2025, ELPAC 2024

Student demographics

Hispanic20.6%

White38.5%

Asian2.3%

Black27.9%

Other10.6%

Performance breakdown

Performance breakdown for Endeavour Middle
Category	Percentage
Exceeded Standard	1.8%
Met Standard	9.8%
Below Standard	88.4%

Score Factors

Holding Back

▼Exceeded standard: 1.8%

15.5pp below state avg (state avg 17.3%)

30% weight

▼Met or exceeded: 11.6%

27.9pp below state avg (state avg 39.5%)

20% weight

▼Growth (G6→G8): -0.6pp

Scores decline across grades (state avg +0.8pp)

15% weight

▼Chronic absenteeism: 28.2%

8.9pp above state avg (state avg 19.3%)

15% weight

▼Baseline proficiency: 11.6%

Below state baseline (state avg 39.5%)

10% weight

▼Suspension rate: 10.7%

6.6pp above state avg (state avg 4.1%)

10% weight

Unlike traditional school ratings, we show our work. Every factor, its weight, and how this school compares to the state average — so you can decide what matters most to your family. The middle school Scope Score is weighted across 6 dimensions. See full methodology →

What other rankings don't show you

Most rating sites report "12% proficient" for Endeavour Middle and stop there. Here's what that number hides:

1.8% of students exceeded standard while 9.8% met it. That exceeded rate is 15.5 points below the state average of 17.3%. That's 4.8 points below the Lancaster Elementary district average of 6.7%. The 2 nearby schools within ~3 miles average 13.7% exceeded — 11.9 points higher. The gap between "met" and "exceeded" can reveal how much a school's curriculum challenges students beyond proficiency.

Proficiency drops by 0.6 percentage points from Grade 6 to grade 8 growth — a signal that the school may not be sustaining early gains.

California's Dashboard shows ELA performance declined and Math increased year-over-year. 23.2% of English learners reached Level 4 (Well Developed) on ELPAC.

Chronic absenteeism is 28.2%, above the state average of 19.3%.

Why the exceeded vs. met split matters →

A low score doesn't tell the whole story. Read: Your School Scored Low — Here's What That Actually Means

Key metrics

% Exceeded Standard

1.8%

Students scoring above proficient

% Met or Above

11.6%

Students meeting standard

Growth (G6→G8)

-0.6pp

Change in proficiency rate

Chronic Absenteeism

28.2%

Students missing 10%+ of days

Suspension Rate

10.7%

Students suspended at least once

Total Tested

1,494

Across all grades & subjects

Grade trajectory

How proficiency compares across grade levels this year (different students, same test year)

ELA Trajectory

G6 → G7 → G8

Math Trajectory

G6 → G7 → G8

ELA scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
6th	252	1.6%	13.9%	25.4%	59.1%	15.5%
7th	239	2.5%	17.6%	25.1%	54.8%	20.1%
8th	255	2.0%	14.9%	27.8%	55.3%	16.9%

Math scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
6th	251	1.6%	4.0%	22.7%	71.7%	5.6%
7th	240	2.1%	6.7%	17.5%	73.8%	8.8%
8th	257	1.2%	1.9%	19.5%	77.4%	3.1%

K-12 Feeder PathBoundary data

Elementary

Nancy Cory Elementary

32.6# in state

Desert View Elementary

Also serves area

▼

Middle

Endeavour Middle

12.8# in state

This school

▼

High School

No feeder data available for this level

Feeder patterns derived from 2015-16 NCES attendance boundary data. Boundaries may have changed. Contact your school district for current information.