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Direct linkBrossman, Bradley G.; Lee, Won-Chan – Applied Psychological Measurement, 2013
The purpose of this research was to develop observed score and true score equating procedures to be used in conjunction with the multidimensional item response theory (MIRT) framework. Three equating procedures--two observed score procedures and one true score procedure--were created and described in detail. One observed score procedure was…
Descriptors: Equated Scores, True Scores, Item Response Theory, Mathematics Tests
Download full textKolen, Michael J. – 1980
Results from equipercentile, linear, and latent trait equating of the vocabulary and quantitative thinking tests of the Iowa Tests of Educational Development were compared. The study entailed both the equating of forms (of similar difficulty) and the equating of levels (of differing difficulty). The goal was to equate seventh edition tests to…
Descriptors: Achievement Tests, Difficulty Level, Equated Scores, Guessing (Tests)
