English Language Arts
69.5%
State avg 53.1%
District avg 69.5%
County avg 67.3%
+3.1pp since 2023-24
District avg 69.5%
County avg 67.3%
+3.1pp since 2023-24
Test scores
See how it ranks: all New Jersey schools by score · Morris County schools by score
NJSLA, SY 2024-25
All grades, all students. % Meeting or Exceeding Expectations.Mathematics
49.5%
State avg 41.6%
District avg 49.5%
County avg 56.6%
+5.3pp since 2023-24
District avg 49.5%
County avg 56.6%
+5.3pp since 2023-24
Science
40.0%
State avg 26.8%
District avg 40.0%
County avg 38.6%
+10.5pp since 2023-24
District avg 40.0%
County avg 38.6%
+10.5pp since 2023-24
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
53.7%
composite math + reading, all grades
Predicted
51.9%
based on NJ schools with similar FRL share
Beats by
+1.7pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
By grade, SY 2024-25
School score vs state average per tested grade.| Grade | English Language Arts | Mathematics | Science | ||||||
|---|---|---|---|---|---|---|---|---|---|
| School | State | n tested | School | State | n tested | School | State | n tested | |
| Grade 3 | 55.2% | 44.9% | 38 | 44.7% | 49.7% | 38 | N/A | N/A | N/A |
| Grade 4 | 51.0% | 53.6% | 47 | 55.3% | 46.8% | 47 | N/A | N/A | N/A |
| Grade 5 | 63.3% | 52.8% | 30 | 50.0% | 44.2% | 30 | 50.0% | 30.1% | 30 |
| Grade 6 | 89.2% | 56.2% | 37 | 51.3% | 39.8% | 37 | N/A | N/A | N/A |
| Grade 7 | 83.3% | 57.1% | 30 | 43.4% | 38.8% | 30 | N/A | N/A | N/A |
| Grade 8 | 82.8% | 57.1% | 35 | N/A | 20.7% | N/A | 31.4% | 19.0% | 35 |
| Grade HS | N/A | N/A | N/A | 50.0% | 44.2% | 34 | N/A | N/A | N/A |
2-year history
All grades, all students. Mount Arlington Public New Jersey avgEnglish Language Arts
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2024-25 | 69.5% | 69.5% | 67.3% | 53.1% |
| SY 2023-24 | 66.4% | 66.4% | 67.5% | 52.2% |
Mathematics
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2024-25 | 49.5% | 49.5% | 56.6% | 41.6% |
| SY 2023-24 | 44.2% | 44.2% | 55.9% | 39.4% |
Science
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2024-25 | 40.0% | 40.0% | 38.6% | 26.8% |
| SY 2023-24 | 29.5% | 29.5% | 37.2% | 25.0% |
How to read these scores
What is NJSLA?
NJSLA is the statewide standardized test administered by New Jersey public schools.
What does "% Meeting or Exceeding Expectations" mean?
It is the share of students at the school who performed at grade level or above on the test, summed across the top two of four performance levels. A higher number is better.
What does 69.5% mean for English Language Arts at Mount Arlington Public School?
It means about 69.5 percent of students tested at Mount Arlington Public School performed at grade level or above on the NJSLA English Language Arts test in 2024-25. The statewide average for New Jersey that year was 53.1%. The other students fell into the lower performance levels.
How is the state average calculated?
It is a weighted average, not a simple average of each school's number. We multiply each public school's score by how many of its students tested, add those together for all schools in New Jersey, and divide by the total students tested that year. This way a big school with 1,500 students counts more than a small school with 50 students, which is the right way to ask "how did the typical student do this year?". District and county averages on this page use the same method, just scoped to that district or county.
Where does this data come from?
New Jersey Department of Education, New Jersey Student Learning Assessments (NJSLA). Per-grade per-subject Spring administration: ELA grades 3-9, Math grades 3-8 + Algebra I/II + Geometry, Science grades 5/8/11. School-level All Students subgroup from the NJDOE Statewide Assessment Reports. Headline metric is the cumulative 'Meeting or Exceeding Expectations' rate (top 2 of 5 ELA/Math levels; top 2 of 4 Science levels).
How often is it updated?
NJSLA is administered once a year (spring). Results are released by the state in the summer or early fall. We refresh this page after each annual release.