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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
In diagnostic classification models (DCMs), the Q matrix encodes in which attributes are required for each item. The Q matrix is usually predetermined by the researcher but may in practice be misspecified which yields ...
Estimation of Latent Regression Item Response Theory Models Using a Second-Order Laplace Approximation
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The estimation of high-dimensional latent regression item response theory (IRT) models is difficult because of the need to approximate integrals in the likelihood function. Proposed solutions in the literature include using ...