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Wainer, Howard; Wright, Benjamin D. – 1980
The pure Rasch model was compared with four modifications of the model in a number of different simulations in order to ascertain the comparative efficiencies of the parameter estimations of these modifications. Because there is always noise in test score data, some individuals may have response patterns that do not fit the model and their…
Descriptors: Error of Measurement, Guessing (Tests), Item Analysis, Latent Trait Theory
Wainer, Howard – 1985
Techniques derived from item response theory are useful for estimating the reliability of test classification above and below the cutting score. Test developers can construct a test whose information is peaked in the region of the cutting score; users can select a test which provides the most information in this region. The Cut-Score…
Descriptors: Cutting Scores, Item Analysis, Latent Trait Theory, Mastery Tests
