The aim of the article is to propose a Bayesian estimation through Markov chain Monte Carlo of a multidimensional item response theory model for graded responses with an additive …
Item response theory (IRT) comprises a set of statistical models which are useful in many fields, especially when there is interest in studying latent variables. These latent variables …
Item response theory (IRT) comprises a set of statistical models which are useful in many fields, especially when there is an interest in studying latent variables (or latent traits) …
Multidimensional item response theory (MIRT) models are quite useful to analyze datasets involving multiple skills or latent traits, which occur in many applications. However, most of …
The multiple group IRT model (MGM) proposed by Bock and Zimowski (1997) provides a useful framework for analyzing item response data from clustered respondents. In the MGM …
ABSTRACT Traditional Item Response Theory models assume the distribution of the abilities of the population in study to be Gaussian. However, this may not always be a …
In a latent class IRT model in which the latent classes are ordered on one dimension, the class specific response probabilities are subject to inequality constraints. The number of …
Y Sheng - Journal of Statistical Software, 2010 - jstatsoft.org
Multidimensional item response models have been developed to incorporate a general trait and several specific trait dimensions. Depending on the structure of these latent traits …
X Zhang, C Wang, DJ Weiss, J Tao - Multivariate Behavioral …, 2021 - Taylor & Francis
Normality of latent traits is a common assumption made when estimating parameters for item response theory (IRT) models, but this assumption may be violated. The purpose of this …