CRAN Task View: Psychometric Models and Methods

Maintainer:Patrick Mair, Yves Rosseel, Kathrin Gruber
Contact:mair at
Contributions:Suggestions and improvements for this task view are very welcome and can be made through issues or pull requests on GitHub or via e-mail to the maintainer address. For further details see the Contributing guide.
Citation:Patrick Mair, Yves Rosseel, Kathrin Gruber (2022). CRAN Task View: Psychometric Models and Methods. Version 2022-05-03. URL
Installation:The packages from this task view can be installed automatically using the ctv package. For example, ctv::install.views("Psychometrics", coreOnly = TRUE) installs all the core packages or ctv::update.views("Psychometrics") installs all packages that are not yet installed and up-to-date. See the CRAN Task View Initiative for more details.

Psychometrics is concerned with theory and techniques of psychological measurement. Psychometricians have also worked collaboratively with those in the field of statistics and quantitative methods to develop improved ways to organize, analyze, and scale corresponding data. Since much functionality is already contained in base R and there is considerable overlap between tools for psychometry and tools described in other views, we only give a brief overview of packages that are closely related to psychometric methodology.

Contributions are always welcome and encouraged, either via e-mail to the maintainer or by submitting an issue or pull request in the GitHub repository linked above.

Item Response Theory (IRT):

Correspondence Analysis (CA), Optimal Scaling:

Factor Analysis (FA), Principal Component Analysis (PCA):

Structural Equation Models (SEM):

Multidimensional Scaling (MDS):

Classical Test Theory (CTT):

Knowledge Structure Analysis:

Latent Class and Profile Analysis:

Paired Comparisons, Rankings, Ratings:

Network Psychometrics:

Bayesian Psychometrics:

CRAN packages

Core:ade4, anacor, blavaan, ca, CTT, eRm, homals, lavaan, ltm, mirt, mokken, OpenMx, prefmod, psy, psych, psychotree, sem, smacof, TAM, vegan.
Regular:aspect, asymmetry, ata, BayesLCA, betafunctions, betareg, birtr, bootnet, bpca, BradleyTerry2, BTLLasso, cabootcrs, cacIRT, candisc, catR, CAvariants, CDM, cds, ClustVarLV, CMC, cncaGUI, cNORM, cocor, cocorresp, cocron, conquestr, cops, covLCA, CTTShiny, DAKS, dexter, dextergui, dexterMST, DFIT, DIFboost, DIFlasso, difNLR, DIFplus, difR, DIFtree, dina, DistatisR, e1071, eba, ecodist, edina, edmdata, edstan, eegkit, EFAutilities, EGAnet, elasticIsing, elasticnet, equate, equateIRT, equateMultiple, errum, esaBcv, EstCRM, EstimateGroupNetwork, ExPosition, FactoMineR, faoutlier, fastICA, fechner, flexmix, fourPNO, GDINA, Gifi, gimme, glasso, GLMMRR, GPArotation, GPCMlasso, graphicalVAR, gSEM, gtheory, heplots, iarm, ica, ICC, iccbeta, ifaTools, immer, influence.SEM, irr, irtDemo, irtoys, irtplay, irtrees, IRTShiny, IsingFit, IsingSampler, jrt, kcirt, kequate, kst, labdsv, latdiag, lava, lavaan.survey, LAWBL, LCAvarsel, lisrelToR, lme4, LNIRT, lordif, lsl, lslx, lvnet, MASS, MBESS, MCAvariants, MCMCglmm, MCMCpack, mediation, metaSEM, mgm, MIIVsem, mirtCAT, missMDA, mixRasch, MLCIRTwithin, MLDS, mlVAR, MplusAutomation, mpt, MPTinR, mudfold, MultiLCIRT, multiplex, multiway, munfold, NetworkComparisonTest, NetworkToolbox, networktools, networktree, nFactors, nlme, nlsem, nsprcomp, ohoegdm, optiscale, ordinal, pairwise, paran, pcaPP, pcFactorStan, pcIRT, PCMRS, piecewiseSEM, pks, PLMIX, PLmixed, plotSEMM, plRasch, pls, poLCA, polycor, PP, profileR, pscl, psychomix, psychonetrics, psychotools, psychTools, psyphy, PTAk, pwrRasch, qcv, qgraph, quickpsy, randomLCA, RaschSampler, regsem, Rirt, rpf, rrum, rsem, semds, SemNeT, semPlot, semTools, semtree, SensoMineR, ShinyItemAnalysis, Sim.DiffProc, simcdm, simsem, sirt,, SparseFactorAnalysis, systemfit, TestDataImputation, TestDesign, TestScorer, ThreeWay, thurstonianIRT, tidyLPA, TreeBUGS, TripleR, VGAM, wCorr, WrightMap, xxIRT.
Archived:AnalyzeFMRI, CopyDetect, irtProb, LAM, ltbayes, modelfree, REQS, semdiag, semPLS, smds, sparseSEM, STARTS, subscore, superMDS.

Related links