Summative Assessments

The Oregon Statewide Assessment System (OSAS) includes required summative assessments in English language arts, mathematics, and science, as well as tests of English language proficiency to determine which students are eligible to enter or exit English learner status. This system ensures equity by identifying barriers to learning so they can be removed or addressed. The system includes several secondary components, such as a required Local Performance Assessment, an optional social sciences analysis performance assessment, and a survey of student experience in Oregon schools.

The Oregon Statewide Assessment System evaluates systems, not students. The primary purpose of this equity-centered assessment system is to measure student group learning, so that meaningful assertions can be made about how well schools, districts, and the state are fulfilling their responsibility to provide all students with high quality grade level educational opportunities.

Results from statewide summative assessments are used to make decisions about resource allocation and state educational priorities for groups of students, not to evaluate individual students. Assessment data are also used to identify and remedy inequalities in the educational system. Finally, states are required to annually report student participation and performance in the areas of reading and mathematics, and on student participation in the area of science, to the U.S. Department of Education as part of the federal educational accountability system.

OSAS Math Summative Test Infographic - English / Spanish

OSAS ELA Summative Test Infographic - English / Spanish

OSAS Science Summative Test Infographic - English / Spanish 

2025-26 Annual Notice and Opt-out Form for Oregon’s Statewide Summative Assessments in ELA and Math:

Notice and Opt-out Form in English

Formulario de aviso y exclusión voluntaria en español