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Download full textDeMars, Christine – 2003
A competency test was developed to assess students skills in using electronic library resources. Because all students were required to pass the test, and had multiple opportunities to do so, multiple test forms were desired. Standards had been set on the original form, and minor differences in form difficulty needed to be taken into account.…
Descriptors: College Students, Electronic Libraries, Equated Scores, Higher Education
Yang, Wen-Ling; Houang, Richard T. – 1996
The influence of anchor length on the accuracy of test equating was studied using Tucker's linear method and two Item-Response-Theory (IRT) based methods, focusing on whether equating accuracy improved with more anchor items, whether the anchor effect depended on the equating method used, and the adequacy of the inclusion of the guessing parameter…
Descriptors: Equated Scores, Estimation (Mathematics), Guessing (Tests), Item Response Theory
