pln

Overview

This package performs bivariate composite likelihood and full information maximum likelihood estimation for unidimensional polytomous logit-normit (graded logistic) item response theory (IRT) models. It is also capable of simulating data under the model, and computing the limited information test statistic, M2.

Installation

# Development version from GitHub:
# install.packages("devtools")
# devtools::install_github("falkcarl/pln")
install.packages("pln", repos = c('https://falkcarl.r-universe.dev', 'https://cloud.r-project.org'))

# From CRAN:
install.packages("pln")