Analysis of discrete response data using unidimensional and multidimensional item analysis models under the Item Response Theory paradigm (Chalmers (2012) <doi:10.18637/jss.v048.i06>). Exploratory and confirmatory item factor analysis models are estimated with quadrature (EM) or stochastic (MHRM) methods. Confirmatory bi-factor and two-tier models are available for modeling item testlets using dimension reduction EM algorithms, while multiple group analyses and mixed effects designs are included for detecting differential item, bundle, and test functioning, and for modeling item and person covariates. Finally, latent class models such as the DINA, DINO, multidimensional latent class, mixture IRT models, and zero-inflated response models are supported, as well as a wide family of probabilistic unfolding models.
Version: 1.44.0 Depends: stats, R (≥ 4.1.0), stats4, lattice, methods Imports: GPArotation, gridExtra, Matrix (≥ 1.5-0), Rcpp, mgcv, vegan, Deriv, splines, pbapply (≥ 1.3-0), dcurver, SimDesign LinkingTo: Rcpp, RcppArmadillo Suggests: boot, latticeExtra, directlabels, shiny, knitr, markdown, Rsolnp, nloptr, sirt, plink, mirtCAT, testthat (≥ 3.0.0) Published: 2025-01-28 DOI: 10.32614/CRAN.package.mirt Author: Phil Chalmers [aut, cre], Joshua Pritikin [ctb], Alexander Robitzsch [ctb], Mateusz Zoltak [ctb], KwonHyun Kim [ctb], Carl F. Falk [ctb], Adam Meade [ctb], Lennart Schneider [ctb], David King [ctb], Chen-Wei Liu [ctb], Ogreden Oguzhan [ctb] Maintainer: Phil Chalmers <rphilip.chalmers at gmail.com> BugReports: https://github.com/philchalmers/mirt/issues?state=open License: GPL (≥ 3) URL: https://philchalmers.github.io/mirt/, https://github.com/philchalmers/mirt/wiki, https://groups.google.com/forum/#!forum/mirt-package NeedsCompilation: yes Citation: mirt citation info Materials: README NEWS In views: MissingData, Psychometrics CRAN checks: mirt results Documentation: Downloads: Reverse dependencies: Reverse depends: lordif, mirtCAT, PerFit, TestAnaAPP Reverse imports: airt, AlignLV, BifactorIndicesCalculator, ConvertPar, ctgdist, D3mirt, DFIT, difR, EFA.dimensions, equateIRT, faoutlier, flps, GPCMlasso, GRShiny, irtawsi, irtGUI, irtpwr, irtQ, irtreliability, jrt, kequate, mstDIF, MultBiplotR, PROsetta, scDIFtest, shinyIRT, ShinyItemAnalysis, SIAmodules, simCAT, sphereML, tabledown Reverse suggests: equateMultiple, flexmet, irtrees, LSAmitR, merDeriv, mlpwr, nonnest2, psychotools, psychotree, RMX, rpf, sirt, TestDesign Reverse enhances: CDM Linking:Please use the canonical form https://CRAN.R-project.org/package=mirt to link to this page.
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