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PDF pending restorationMcKinley, Robert L.; Reckase, Mark D. – 1981
This study was conducted in order to evaluate available linking techniques for forming large item pools and to make recommendations as to which techniques should be used under various circumstances. Variables of interest included calibration model and procedure, sample size, overlap level, and linking procedure. The calibration models considered…
Descriptors: Comparative Analysis, Item Analysis, Item Banks, Methods
Download full textCenter on Education Policy, 2010
This paper profiles the student subgroup achievement and gap trends in Iowa for 2010. In grade 8 (the only grade in which subgroup trends were analyzed by achievement level), Iowa had data for racial/ethnic subgroups, low income students, and boys and girls at the proficient and advanced levels. Trends at the proficient and advanced levels were…
Descriptors: Achievement Gap, Achievement Gains, Reading Achievement, Mathematics Achievement
Deeter, Thomas; Prine, Don – 1996
As part of its academic testing program and the evaluation of academic achievement, the Des Moines (Iowa) Public School System administers two standardized, norm-referenced achievement tests. These are the Iowa Tests of Basic Skills (ITBS) and the Iowa Tests of Educational Development (ITED). This document provides information regarding…
Descriptors: Academic Achievement, Achievement Tests, Comparative Analysis, Educational Assessment
