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psych

Procedures for Psychological, Psychometric, and Personality Research

v2.6.3 · Mar 24, 2026 · GPL (>= 2)

Description

A general purpose toolbox developed originally for personality, psychometric theory and experimental psychology. Functions are primarily for multivariate analysis and scale construction using factor analysis, principal component analysis, cluster analysis and reliability analysis, although others provide basic descriptive statistics. Item Response Theory is done using factor analysis of tetrachoric and polychoric correlations. Functions for analyzing data at multiple levels include within and between group statistics, including correlations and factor analysis. Validation and cross validation of scales developed using basic machine learning algorithms are provided, as are functions for simulating and testing particular item and test structures. Several functions serve as a useful front end for structural equation modeling. Graphical displays of path diagrams, including mediation models, factor analysis and structural equation models are created using basic graphics. Some of the functions are written to support a book on psychometric theory as well as publications in personality research. For more information, see the <https://personality-project.org/r/> web page.

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CRAN Check Status

14 OK
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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (272)

imports

AID APRScenario AriGaMyANNSVR BANAM BCFM Bayesrel CFM CJIVE CTTShiny CensSpatial CepReg ClustMC CoFM CoTiMA CompositeReliability CorrMixed CorrToolBox DIZutils DSFM DescribeDF DiSSMod EFA.MRFA EFA.dimensions EFAfactors EFAtools EMC2 EasyDescribe EvaluateCore FAfA FCO FMAT ForLion FracKrigingR GDILM.ME GDILM.SIR GGIR GGUM GJRM HMDA IRTShiny ItemRest JWileymisc L0ggm LOGAN LSMjml LocKer MAGMA.R MDSPCAShiny MIDASim MMeM MRPC MSclust MUVR2 MultBiplotR NPCDTools NeEDS4BigData NetworkToolbox Omisc OpenRepGrid PFLR PROsetta PSAboot PsychWordVec RBtest RMTL RSP ResIN SFM SIRE SLFPCA ShiVa ShinyItemAnalysis SimMultiCorrData SimTimeVar SumcaVer1 ThresholdROCsurvival TriMatch UCSCXenaShiny agriutilities apa7 aplms auto.pca beezdiscounting bruceR cSEM careless ccpsyc cdmTools compIndexBuilder compositeReliabilityInNestedDesigns condir conogive ctrlGene deliberr dendroTools detectnorm drawsample eRm ectotemp esem exhaustiveRasch fDMA fspe ftsa geodl getmstatistic gscaLCA hetcorFS irtGUI irtawsi jmv jrt klausuR latbias latentFactoR lavaan.shiny likert lvnet mbir mcvis mdpeer measr measureR mfrmr mgwrhw mixKernel mmibain modelDown modgo modnets mousetrap multilevelPSA mvvg mxnorm nFactors nda ndi networktools outlierensembles pepe pervasive petersenlab pguIMP power4mome prepdat projectLSA psychTools psychonetrics psyntur qgraph qmethod qrLMM qrNLMM quest r4lineups radiant.basics radiant.data radiant.model radiant.multivariate regressoR reliacoef rmcorr sampcompR scaledescr sdmvspecies sdrt seliNDRIx semboottools semdrw shinyIRT siren sociome splithalf splithalfr stats4teaching tabledown tidySEM tteICE umx unival vartest visvow volker webr

Dependency Network

Dependencies Reverse dependencies mnormt lattice nlme GPArotation AgreementInterval BinNor Compind FactorAssumptions MOQA MultiOrd MultisiteMediation PoisBinOrdNor SSDforR coefa generalCorr metevalue random.polychor.pa whomds AID +257 more reverse deps psych

Version History

updated 2.6.3 ← 2.6.1 diff Mar 25, 2026
new 2.6.1 Mar 10, 2026
updated 2.6.1 ← 2.5.6 diff Feb 2, 2026
updated 2.5.6 ← 2.5.3 diff Jun 22, 2025
updated 2.5.3 ← 2.4.12 diff Mar 20, 2025
updated 2.4.12 ← 2.4.6.26 diff Dec 22, 2024
updated 2.4.6.26 ← 2.4.3 diff Jun 26, 2024
updated 2.4.3 ← 2.4.1 diff Mar 18, 2024
updated 2.4.1 ← 2.3.12 diff Jan 17, 2024
updated 2.3.12 ← 2.3.9 diff Dec 19, 2023
updated 2.3.9 ← 2.3.6 diff Sep 25, 2023
updated 2.3.6 ← 2.3.3 diff Jun 20, 2023
updated 2.3.3 ← 2.2.9 diff Mar 17, 2023
updated 2.2.9 ← 2.2.5 diff Sep 28, 2022
updated 2.2.5 ← 2.2.3 diff May 9, 2022
updated 2.2.3 ← 2.1.9 diff Mar 18, 2022
updated 2.1.9 ← 2.1.6 diff Sep 21, 2021
updated 2.1.6 ← 2.1.3 diff Jun 17, 2021
updated 2.1.3 ← 2.0.12 diff Mar 26, 2021
updated 2.0.12 ← 2.0.9 diff Dec 15, 2020