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Hathaway, Walter; And Others – 1985
This report describes the development, operation, maintenance, and future prospects of the item banks pioneered by the Portland (Oregon) School District. At the time of this report, there were 3,500 mathematics, 2,200 reading, and 2,300 language usage items calibrated under the fixed parameter model of item response theory (IRT) for Grades 3-8.…
Descriptors: Adaptive Testing, Competency Based Education, Computer Assisted Testing, Criterion Referenced Tests