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A Doubly Latent Space Joint Model for Local Item and Person Dependence in the Analysis of Item Response Data
Published online by Cambridge University Press: 01 January 2025
Abstract
Item response theory (IRT) is one of the most widely utilized tools for item response analysis; however, local item and person independence, which is a critical assumption for IRT, is often violated in real testing situations. In this article, we propose a new type of analytical approach for item response data that does not require standard local independence assumptions. By adapting a latent space joint modeling approach, our proposed model can estimate pairwise distances to represent the item and person dependence structures, from which item and person clusters in latent spaces can be identified. We provide an empirical data analysis to illustrate an application of the proposed method. A simulation study is provided to evaluate the performance of the proposed method in comparison with existing methods.
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- Copyright © 2018 The Psychometric Society
Footnotes
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11336-018-9630-0) contains supplementary material, which is available to authorized users.
Both Ick Hoon Jin and Minjeong Jeon are first authors.
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