Abstract
ABSTRACT A process is proposed to create the one-dimensional expected item characteristic curve (ICC) and test characteristic curve (TCC) for each trait in multidimensional forced-choice questionnaires based on the Rank-2PL (two-parameter logistic) item response theory models for forced-choice items with two or three statements. Some examples of ICC and TCC plots from a real pair form and triplet form are provided, and they appear to help identify misfit trait scores at the item and test levels. TCC plots with negative statements changed to positive ones are also proposed.
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