Likelihood inference on the underlying structure of IRT models

nonparametric mixture models, order restricted inference, chi-bar squared distribution, marginal parameterizations,

The generalized Logit-Linear Item Response Model for Binary-Designed Items

generalized logit-linear item response model, design matrices, linear restrictions, item response theory,

Finite Mixture Multilevel Multidimensional Ordinal IRT Models for Large Scale Cross-Cultural Research

measurement equivalence, measurement invariance, mixture modeling, latent classes, differential item functioning, item response theory, hierarchical item response theory, multidimensional IRT, graded response model, cross-cultural research,