Abstract

A probabilistic item response theory (IRT) model is developed for pair-comparison design in which the unfolding principle governing the choice process uses a discriminant process analogous to Thurstone's Law of Comparative Judgment. A simulation study demonstrates the feasibility of estimation, and two examples illustrate the implications for psychological research. (TJH)

Citation

Andrich, D. (1989). A Probabilistic IRT Model for Unfolding Preference Data. Applied Psychological Measurement, 13(2), 193-216. Retrieved August 13, 2024 from https://www.learntechlib.org/p/142081/.

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Keywords

• Algorithms
• Computer Simulation
• Discrimination Learning
• Equations (Mathematics)
• Error of Measurement
• Latent Trait Theory
• mathematical models
• Maximum Likelihood Statistics
• Probability
• Psychological Testing
• Psychometrics