English Language Arts
42.0%
State avg 43.0%
District avg 37.4%
County avg 42.4%
-13.9pp since 2023-24
District avg 37.4%
County avg 42.4%
-13.9pp since 2023-24
Test scores
See how it ranks: all Oregon schools by score · Josephine County schools by score
OSAS, SY 2024-25
All grades, all students. % Proficient.Mathematics
N/A
State avg 31.8%
District avg 25.8%
County avg 29.5%
District avg 25.8%
County avg 29.5%
Science
17.6%
State avg 30.2%
District avg 26.4%
County avg 33.7%
-22.1pp since 2023-24
District avg 26.4%
County avg 33.7%
-22.1pp since 2023-24
What this means: On the OSAS, Oregon's statewide test, about 42 of every 100 students at this school read and write at grade level and about 18 of 100 are at grade level in science. Across all Oregon schools, those numbers are about 43 and 30. Reading and writing scores are down about 14 points since 2023, while science scores are down about 22 points.
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
34.9%
composite math + reading, all grades
Predicted
24.6%
based on OR schools with similar FRL share
Beats by
+10.3pp
above demographic expectation
What this means: About 35% of students here test proficient in math and reading, compared with the roughly 25% typical for Oregon schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Oregon's top nor bottom 10%.
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 ALL | 42.0% | 43.0% | 50 | N/A | 31.8% | N/A | 17.6% | 30.2% | 51 |
2-year history
All grades, all students. Illinois Valley Oregon avgEnglish Language Arts
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2024-25 | 42.0% | 37.4% | 42.4% | 43.0% |
| SY 2023-24 | 55.9% | 40.8% | 43.8% | 42.4% |
Mathematics
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2024-25 | N/A | 25.8% | 29.5% | 31.8% |
| SY 2023-24 | 19.1% | 26.0% | 29.9% | 31.3% |
Science
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2024-25 | 17.6% | 26.4% | 33.7% | 30.2% |
| SY 2023-24 | 39.7% | 30.0% | 34.0% | 29.6% |
How to read these scores
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 42.0% mean for English Language Arts at Illinois Valley High School?
It means about 42.0 percent of students tested at Illinois Valley High 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.