OSAS, SY 2024-25
All grades, all students. % Proficient.English Language Arts
66.8%
State avg 43.0%
District avg 52.9%
County avg 48.1%
+11.5pp since 2023-24
Mathematics
51.3%
State avg 31.8%
District avg 43.0%
County avg 37.8%
-0.3pp since 2023-24
Science
34.2%
State avg 30.2%
District avg 39.6%
County avg 34.5%
-4.1pp since 2023-24
What this means: On the OSAS, Oregon's statewide test, about 67 of every 100 students at this school read and write at grade level, about 51 of 100 do math at grade level, and about 34 of 100 are at grade level in science. Across all Oregon schools, those numbers are about 43, 32, and 30. Reading and writing scores are up about 12 points since 2023, while math scores have held steady and science scores are down about 4 points.
What is OSAS?
OSAS is the statewide standardized test administered by Oregon public schools.
What does "% Proficient" 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 66.8% mean for English Language Arts at Cooper Mountain Elementary School?
It means about 66.8 percent of students tested at Cooper Mountain Elementary School performed at grade level or above on the OSAS English Language Arts test in 2024-25. The statewide average for Oregon that year was 43.0%. 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 Oregon, 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?
Oregon Department of Education, Oregon Statewide Assessment System (OSAS) — Smarter Balanced for ELA + Math, OAKS Science. School-level "Total Population (All Students)" subgroup, all grades combined, from the ODE Assessment Group Reports. Headline metric is the cumulative Level 3 + Level 4 rate (SBAC "Met or Exceeded Standard").
How often is it updated?
OSAS 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.
