A Heuristic Procedure for Suggesting an Appropriate Scoring Function for Polytomous Items with Ordered Response Categories
Door: Veldhuijzen, Niels H. | 01-01-1995 Polytomous items with two or more ordered response categories, called ordered polytomous items, are considered. A scoring function assigns a real number to each response category.Each answer to an ordered polytomous item is scored as the number assigned to the response category the answer belongs to.
A useful model for ordered polytomous items is the Generalized Partial Credit Model. To use this model, a scoring function for each item in a test must be available. In this report a heuristic procedure is developed which may be used to supply tentative scoring functions to be used in an application of the Generalized Partial Credit Model. Two examples and an algorithm are presented.
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