Qval

Provide a variety of Q-matrix validation methods for the generalized cognitive diagnosis models, including the method based on the generalized deterministic input, noisy, and gate model (G-DINA) by de la Torre (2011) doi:10.1007/s11336-011-9207-7 discrimination index (the GDI method) by de la Torre and Chiu (2016) doi:10.1007/s11336-015-9467-8, the step-wise Wald test method (the Wald method) by Ma and de la Torre (2020) doi:10.1111/bmsp.12156, the Hull method by Najera et al. (2021) doi:10.1111/bmsp.12228, the multiple logistic regression‑based Q‑matrix validation method (the MLR-B method) by Tu et al. (2022) doi:10.3758/s13428-022-01880-x. Different research methods during Q-matrix validating are available.

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