Robuta

https://www.r-project.org/nosvn/R.check/r-release-macos-arm64/thurstonianIRT-00install.html Install log for 'thurstonianIRT' installlog https://cran.case.edu/web/packages/thurstonianIRT/index.html CRAN: Package thurstonianIRT Fit Thurstonian Item Response Theory (IRT) models in R. This package supports fitting Thurstonian IRT models and its extensions using 'Stan', 'lavaan', or... cranpackage