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Download full textYen, Shu Jing; Ochieng, Charles; Michaels, Hillary; Friedman, Greg – Online Submission, 2005
The main purpose of this study was to illustrate a polytomous IRT-based linking procedure that adjusts for rater variations. Test scores from two administrations of a statewide reading assessment were used. An anchor set of Year 1 students' constructed responses were rescored by Year 2 raters. To adjust for year-to-year rater variation in IRT…
Descriptors: Test Items, Measures (Individuals), Grade 8, Item Response Theory
