Robitzsch, A. (2023). sirt: Supplementary Item Response Theory Models. R package version 3.13-128. https://CRAN.R-project.org/package=sirt

@Manual{sirt_3.13-128,
  title = {sirt: Supplementary Item Response Theory Models},
  author = {Alexander Robitzsch},
  year = {2023},
  note = {R package version 3.13-128},
  url = {https://CRAN.R-project.org/package=sirt},
}
  • Alexander Robitzsch. Maintainer.