Oregon School Assessment

Data & methodology

What’s included, how it’s linked, and the limitations to keep in mind. Updated February 22, 2026.

Assessment data

Oregon Department of Education assessment group reports (English, Math, Science). Results are aggregated at the school level with participant counts and performance levels. These are the core outcome measures used in charts, maps, and summary tables. Science has a different structure than English/Math in key ways (tested grade coverage, available student-group categories, and inclusion of an All Grades rollup row).

School-level ODE context fields

ODE school media aggregate data adds school-level percentages for students experiencing poverty, students with disabilities, required vaccinations, teacher retention, and experienced teachers. College-going is included as a high-school-focused field with lower coverage outside HS settings.

Socioeconomic context

U.S. Census Bureau American Community Survey (ACS) 5‑year estimates provide tract‑level income and education metrics. These are linked to schools via geocoding.

Locale & geography

NCES locale categories support urban/suburban/town/rural comparisons. ODOT and Census geographies provide spatial context for map overlays.

Data provenance and processing details

A technical note describes data origins, extraction and linkage steps, known limitations, and the latest source-versus-processed coverage audit findings.

Read the technical note

Interpretation cautions

  • Aggregate relationships are not causal; they summarize associations.
  • Suppressed or missing counts can affect the tails of distributions.
  • Geographic linking uses tracts as proxies; small‑area heterogeneity still exists.
  • ODE school poverty percentages and ACS tract income are related but not interchangeable measures.