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Laixu Shang

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Aug 2026

Latent Variable Selection in Multidimensional Item Response Theory Models With Nonignorable Missingness

Nonignorable item nonresponses commonly occur in educational and psychological measurement and pose challenges for statistical inference in item response theory (IRT) models. In multidimensional IRT (MIRT), a key issue is identifying the relationships between multiple latent abilities and test items, known as latent va...

Qian-Zhen Zheng, Ping-Feng Xu, Laixu Shang et al. · 0 citations

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