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Karr, Chad

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General Orientation Manual for the Portland Public School Achievement Testing Program.

Portland Public Schools, OR. Evaluation Dept. – 1983

The Portland (OR) School District has a long-standing tradition of local achievement test development. Portland prefers to use scores and reporting procedures which capitalize on the advantages of "equal interval" which can be analyzed statistically by all procedures available. Portland testing programs serve a number of purposes: (1)…

Descriptors: Achievement Tests, Elementary Secondary Education, Latent Trait Theory, Local Norms

Riding the Rasch Tiger. Part 3: Rasch-Based Evaluation (Without Regrets or Regression to the Mean).

Karr, Chad – 1987

Rasch methodology facilitates effective achievement comparisons to meet evaluation needs at the district, school, classroom, and individual levels. The five-year District Gains Graph developed by the Portland (Oregon) Public Schools charts fall-to-spring achievement gains in basic skills for Grades 3-8, as measured by the Portland Achievement…

Descriptors: Academic Achievement, Achievement Gains, Achievement Rating, Curriculum Evaluation