A Partially Confirmatory Approach to the Multidimensional Item Response Theory with the Bayesian Lasso

Jinsong Chen ()
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Jinsong Chen: The University of Hong Kong

Psychometrika, 2020, vol. 85, issue 3, No 9, 738-774

Abstract: Abstract For test development in the setting of multidimensional item response theory, the exploratory and confirmatory approaches lie on two ends of a continuum in terms of the loading and residual structures. Inspired by the recent development of the Bayesian Lasso (least absolute shrinkage and selection operator), this research proposes a partially confirmatory approach to estimate both structures using Bayesian regression and a covariance Lasso within a unified framework. The Bayesian hierarchical formulation is implemented using Markov chain Monte Carlo estimation, and the shrinkage parameters are estimated simultaneously. The proposed approach with different model variants and constraints was found to be flexible in addressing loading selection and local dependence. Both simulated and real-life data were analyzed to evaluate the performance of the proposed model across different situations.

Keywords: MIRT; Bayesian Lasso; partially confirmatory; Lasso loading; local dependence (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s11336-020-09724-3

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