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Sparse Bayesian Multidimensional Item Response Theory
June 13, 2024, 4:49 a.m. | Jiguang Li, Robert Gibbons, Veronika Rockova
stat.ML updates on arXiv.org arxiv.org
Abstract: Multivariate Item Response Theory (MIRT) is sought-after widely by applied researchers looking for interpretable (sparse) explanations underlying response patterns in questionnaire data. There is, however, an unmet demand for such sparsity discovery tools in practice. Our paper develops a Bayesian platform for binary and ordinal item MIRT which requires minimal tuning and scales well on large datasets due to its parallelizable features. Bayesian methodology for MIRT models has traditionally relied on MCMC simulation, which cannot …
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