OSAS, SY 2024-25
All grades, all students. % Proficient.English Language Arts
77.1%
State avg 43.0%
District avg 52.9%
County avg 48.1%
-0.3pp since 2023-24
Mathematics
67.0%
State avg 31.8%
District avg 43.0%
County avg 37.8%
+2.0pp since 2023-24
Science
57.0%
State avg 30.2%
District avg 39.6%
County avg 34.5%
-0.9pp since 2023-24
What this means: On the OSAS, Oregon's statewide test, about 77 of every 100 students at this school read and write at grade level, about 67 of 100 do math at grade level, and about 57 of 100 are at grade level in science. Across all Oregon schools, those numbers are about 43, 32, and 30. Reading and writing scores have held steady since 2023, while math scores are up about 2 points and science scores have held steady.
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of OR schools after controlling for student poverty
Actual proficiency
66.9%
composite math + reading, all grades
Predicted
42.8%
based on OR schools with similar FRL share
Beats by
+24.1pp
above demographic expectation
What this means: About 67% of students here test proficient in math and reading, well above the roughly 43% typical for Oregon schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 24 points, placing it in Oregon's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual.
How this is calculated →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 77.1% mean for English Language Arts at International School of Beaverton?
It means about 77.1 percent of students tested at International School of Beaverton 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.
