Other packages > Find by keyword >

psych  

Procedures for Psychological, Psychometric, and Personality Research
View on CRAN: Click here


Download and install psych package within the R console
Install from CRAN:
install.packages("psych")

Install from Github:
library("remotes")
install_github("cran/psych")

Install by package version:
library("remotes")
install_version("psych", "2.5.6")



Attach the package and use:
library("psych")
Maintained by
William Revelle
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2007-05-06
Latest Update: 2025-06-23
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 web page.
How to cite:
William Revelle (2007). psych: Procedures for Psychological, Psychometric, and Personality Research. R package version 2.5.6, https://cran.r-project.org/web/packages/psych. Accessed 07 Jun. 2026.
Previous versions and publish date:
1.0-17 (2007-05-06 20:28), 1.0-18 (2007-05-10 09:09), 1.0-23 (2007-05-29 17:38), 1.0-25 (2007-06-04 21:08), 1.0-27 (2007-08-03 18:21), 1.0-33 (2007-10-11 10:20), 1.0-42 (2008-03-24 22:31), 1.0-51 (2008-07-12 10:30), 1.0-58 (2008-09-10 09:18), 1.0-61 (2009-01-05 11:34), 1.0-62 (2009-01-05 16:55), 1.0-63 (2009-01-25 18:51), 1.0-65 (2009-02-08 21:25), 1.0-67 (2009-03-27 09:11), 1.0-70 (2009-05-25 22:25), 1.0-72 (2009-06-02 19:30), 1.0-74 (2009-06-26 18:52), 1.0-75 (2009-07-01 14:04), 1.0-76 (2009-07-18 18:13), 1.0-77 (2009-07-27 14:49), 1.0-78 (2009-07-30 21:30), 1.0-80 (2009-09-30 20:57), 1.0-81 (2009-10-05 09:02), 1.0-83 (2009-10-26 21:52), 1.0-85 (2009-12-20 20:05), 1.0-87 (2010-04-06 10:58), 1.0-88 (2010-04-27 21:10), 1.0-89 (2010-06-28 16:30), 1.0-90 (2010-07-24 22:42), 1.0-91 (2010-09-15 06:56), 1.0-92 (2010-09-22 21:37), 1.0-93 (2010-12-23 19:17), 1.0-94 (2011-01-09 09:45), 1.0-95 (2011-03-31 20:41), 1.0-96 (2011-04-06 20:14), 1.0-97 (2011-05-15 19:08), 1.0-98 (2011-06-09 08:04), 1.1.10 (2011-10-17 20:42), 1.1.11 (2011-11-02 18:26), 1.1.12 (2012-01-02 19:36), 1.1.1111 (2011-11-15 07:49), 1.2.1 (2012-02-16 16:27), 1.2.4 (2012-09-17 08:09), 1.2.8 (2012-09-21 07:21), 1.2.12 (2013-01-20 20:41), 1.3.2 (2013-02-26 17:33), 1.3.10.12 (2013-10-14 07:24), 1.3.10 (2013-10-07 23:44), 1.3.12 (2013-12-12 18:57), 1.4.1 (2014-01-20 07:12), 1.4.2.3 (2014-02-04 18:36), 1.4.2 (2014-02-03 18:42), 1.4.3 (2014-03-25 05:43), 1.4.4 (2014-04-14 19:35), 1.4.5 (2014-05-14 07:27), 1.4.8.11 (2014-08-12 06:36), 1.4.8 (2014-08-11 00:07), 1.5.1 (2015-01-21 07:43), 1.5.4 (2015-04-27 18:51), 1.5.6 (2015-07-08 10:12), 1.5.8 (2015-08-30 12:09), 1.6.4 (2016-05-12 14:48), 1.6.6 (2016-06-28 23:41), 1.6.9 (2016-09-17 20:07), 1.6.12 (2017-01-08 12:02), 1.7.3.21 (2017-03-22 09:55), 1.7.5 (2017-05-03 09:34), 1.7.8 (2017-09-09 16:13), 1.8.3.3 (2018-03-30 23:55), 1.8.4 (2018-05-06 22:48), 1.8.10 (2018-10-31 12:10), 1.8.12 (2019-01-13 00:32), 1.9.12.31 (2020-01-09 00:00), 1.9.12 (2019-12-20 17:40), 2.0.7 (2020-07-26 22:00), 2.0.8 (2020-09-04 21:50), 2.0.9 (2020-10-05 16:30), 2.0.12 (2020-12-16 17:10), 2.1.3 (2021-03-27 17:50), 2.1.6 (2021-06-18 21:30), 2.1.9 (2021-09-22 12:10), 2.2.3 (2022-03-19 01:40), 2.2.5 (2022-05-10 19:00), 2.2.9 (2022-09-29 15:30), 2.3.3 (2023-03-18 01:50), 2.3.6 (2023-06-21 18:50), 2.3.9 (2023-09-26 02:10), 2.3.12 (2023-12-20 10:40), 2.4.1 (2024-01-18 14:10), 2.4.3 (2024-03-19 00:20), 2.4.6.26 (2024-06-27 11:40), 2.4.12 (2024-12-23 10:40), 2.5.3 (2025-03-21 19:00), 2.5.6 (2025-06-23 23:10), 2.6.1 (2026-02-03 07:10), 2.6.3 (2026-03-25 07:10)
Other packages that cited psych R package
View psych citation profile
Other R packages that psych depends, imports, suggests or enhances
Complete documentation for psych
Functions, R codes and Examples using the psych R package
Some associated functions: 00.psych-package . AUC . Garcia . Gleser . Gorsuch . Harman . ICC . ICLUST.cluster . ICLUST.graph . ICLUST . ICLUST.rgraph . ICLUST.sort . KMO . Pinv . Promax . RMSEA . SD . Schmid.Leiman . Tucker . VSS . VSS.parallel . VSS.plot . VSS.scree . Yule . alpha . anova.psych . bassAckward . best.scales . bfi . bi.bars . bifactor . bigCor . biplot.psych . block.random . bock.table . cattell . circ.tests . cluster.cor . cluster.fit . cluster.loadings . cluster.plot . cluster2keys . cohen.d . comorbidity . congruence . cor.ci . cor.plot . cor.smooth . cor.wt . cor2dist . corFiml . corr.test . correct.cor . cortest.bartlett . cortest.mat . cosinor . count.pairwise . cta . densityBy . deprecated . describe.by . describe . diagram . draw.tetra . dummy.code . dwyer . eigen.loadings . ellipses . error.bars.by . error.bars . error.circles . error.crosses . error.dots . esem . fa.diagram . fa.extension . fa.lookup . fa . fa.parallel . fa.random . fa.sort . faCor . faMulti . faRotate . factor.congruence . factor.fit . factor.model . factor.residuals . factor.rotate . factor.scores . factor.stats . factor2cluster . fisherz . fparse . geometric.mean . glb.algebraic . guttman . harmonic.mean . headtail . iclust.diagram . interp.median . irt.fa . irt.item.diff.rasch . irt.person.rasch . irt.responses . kaiser . kappa . lmCor . logistic . lowerUpper . make.keys . manhattan . mat.sort . matrix.addition . mediate . misc . mixed.cor . mssd . multi.hist . multilevel.reliability . omega.graph . omega . outlier . p.rep . paired.r . pairs.panels . parcels . partial.r . phi.demo . phi . phi2poly . plot.psych . polar . polychor.matrix . predict.psych . predicted.validity . principal . print.psych . r.test . range.correction . reliability . rescale . residuals.psych . reverse.code . sat.act . scaling.fits . scatter.hist . schmid . score.alpha . score.irt . score.items . score.multiple.choice . scoreWtd . scrub . sim.VSS . sim.anova . sim.congeneric . sim.hierarchical . sim.irt . sim.item . sim.multilevel . sim . sim.omega . sim.structural . simulation.circ . skew . smc . spider . statsBy . structure.diagram . structure.list . super.matrix . table2matrix . tal_or . test.irt . test.psych . testRetest . tetrachor . thurstone . tr . unidim . winsor . withinBetween . 
Some associated R codes: BASS.R . ICC.R . ICLUST.R . ICLUST.cluster.R . ICLUST.diagram.R . ICLUST.graph.R . ICLUST.rgraph.R . ICLUST.sort.R . Pinv.R . Promax.R . SD.R . VSS.R . VSS.parallel.R . VSS.plot.R . VSS.scree.R . VSS.simulate.R . VSSem.R . Yule.R . alpha.R . alpha.scale.R . anova.psych.R . bassAckward.R . bestScale.R . bi.bars.R . bifactor.R . bigCor.R . biplot.psych.R . block.random.R . circ.sim.R . circ.sim.plot.R . circ.simulation.R . circ.tests.R . cluster.cor.R . cluster.fit.R . cluster.loadings.R . cluster.plot.R . cluster2keys.R . cohen.d.R . comorbidity.R . congeneric.sim.R . congeric.sim.R . cor.ci.R . cor.plot.R . cor2dist.R . corr.test.R . correct.cor.R . cortest.R . cortest.bartlett.R . cortest.jennrich.R . cortest.mat.R . cortest.normal.R . cosinor.R . count.pairwise.R . cta.15.R . cta.R . describe.R . describe.by.R . dia.cone.R . diagram.R . direct.sl.R . draw.tetra.R . dummy.code.R . eigen.loadings.R . ellipses.R . error.bars.R . error.bars.by.R . error.crosses.R . esem.R . esem.diagram.R . fa.R . fa.ci.R . fa.diagram.R . fa.extension.R . fa.graph.R . fa.multi.R . fa.parallel.R . fa.parallel.poly.R . fa.poly.R . fa.random.R . fa.rgraph.R . fa.sapa.R . fa.sort.R . faBy.R . faCor.R . faReg.R . factor.congruence.R . factor.fit.R . factor.minres.R . factor.model.R . factor.pa.R . factor.residuals.R . factor.rotate.R . factor.scores.R . factor.stats.R . factor.wls.R . factor2cluster.R . fiml.R . fisherz.R . fix.dplyr.R . geometric.mean.R . glb.R . glb.algebraic.R . glbs.R . grouplag.R . guttman.R . harmonic.mean.R . headtail.R . interp.median.R . irt.0p.R . irt.1p.R . irt.2p.R . irt.discrim.R . irt.fa.R . irt.item.diff.rasch.R . irt.person.rasch.R . item.dichot.R . item.sim.R . kaiser.R . kappa.R . lavaan.diagram.R . lmCor.R . logistic.R . lowerUpper.R . make.congeneric.R . make.hierarchical.R . make.keys.R . manhattan.R . mat.plot.R . mat.regress.R . mat.sort.R . mat.sqrt.R . matrix.addition.R . matrix.na.R . meta.schmid.R . misc.R . missing.cor.R . mixed.cor.R . multi.hist.R . multilevel.reliability.R . omega.R . omega.bifactor.R . omega.diagram.R . omega.graph.R . omega.sem.R . omegaSem.R . outlier.R . p.rep.R . paired.r.R . pairs.panels.R . parcels.R . parse.R . partial.r.R . phi.R . phi.demo.R . phi2poly.R . plot.irt.R . plot.psych.R . polar.R . polychor.matrix.R . polychoric.R . predict.principal.R . principal.R . print.factor.pa.R . print.psych.R . print.psych.fa.R . print.psych.iclust.R . print.psych.mediate.R . print.psych.omega.R . print.psych.schmid.R . print.psych.stats.R . print.psych.vss.R . psych.R . r.con.R . r.test.R . reliability.R . rescale.R . residuals.psych.R . reverse.code.R . reverseKey.R . rmsea.R . scaling.fits.R . scatter.hist.R . schmid.R . score.items.R . score.multiple.choice.R . scoreWtd.R . sdt.R . sim.VSS.R . sim.anova.R . sim.circ.R . sim.congeneric.R . sim.dichot.R . sim.hierarchical.R . sim.item.R . sim.multilevel.R . sim.structural.R . simGene.R . simulation.circ.R . skew.R . slipHalf.R . smc.R . spider.R . splitHalf.R . statsBy.boot.R . structure.diagram.R . structure.graph.R . structure.list.R . structure.sem.R . summary.psych.R . superMatrix.R . table2matrix.R . target.rot.R . tenberge.R . test.all.R . tetrachor.R . thurstone.R . toDotty.R . validity.R . winsor.R .  Full psych package functions and examples
Downloads during the last 30 days

Today's Hot Picks in Authors and Packages

xmlr  
Read, Write and Work with 'XML' Data
'XML' package for creating and reading and manipulating 'XML', with an object model based on 'Refere ...
Download / Learn more Package Citations See dependency  
curtailment  
Finds Binary Outcome Designs Using Stochastic Curtailment
Finds single- and two-arm designs using stochastic curtailment, as described by Law et al. (2022) ...
Download / Learn more Package Citations See dependency  
keep  
Arrays with Better Control over Dimension Dropping
Provides arrays with flexible control over dimension dropping when subscripting. ...
Download / Learn more Package Citations See dependency  
gRain  
Bayesian Networks
Probability propagation in graphical independence networks, also known as Bayesian networks or prob ...
Download / Learn more Package Citations See dependency  
embryogrowth  
Tools to Analyze the Thermal Reaction Norm of Embryo Growth
Tools to analyze the embryo growth and the sexualisation thermal reaction norms. See ...
Download / Learn more Package Citations See dependency  
cesR  
Access the Canadian Election Study Datasets
Makes accessing and loading the Canadian Election Study (, ...
Download / Learn more Package Citations See dependency  

27,372

R Packages

233,548

Dependencies

72,820

Author Associations

27,205

Publication Badges

© Copyright since 2022. All right reserved, rpkg.net.  Based in Cambridge, Massachusetts, USA