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Updated: Sep 9, 2025

A Two-interval Forced-choice Task for Multisensory Comparisons
Published on: November 9, 2018
Item and Test Characteristic Curves of Rank-2PL Models for Multidimensional Forced-Choice Questionnaires
Jianbin Fu1, Xuan Tan1, Patrick C Kyllonen1
1Educational Testing Service.
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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