mirtjmlmirtjml is a R package provides constrained joint maximum likelihood estimation algorithms for item factor analysis (IFA) based on multidimensional item response theory models. So far, we provide functions for exploratory and confirmatory IFA based on the multidimensional two parameter logistic (M2PL) model for binary response data. Comparing with traditional estimation methods for IFA, the methods implemented in this package scale better to data with large numbers of respondents, items, and latent factors. The computation is facilitated by multiprocessing 'OpenMP’ API. Major Features
Downloadmirtjml package has been published on CRAN. Install it simply by running the following command in R console. > install.packages(“mirtjml”) Source code can be found on mirtjml's GitHub page. References
