R Observatory: Metrics for psych version 2.6.9

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

psych

2.6.9Package record

Procedures for Psychological, Psychometric, and Personality Research

214packages dependsuggested by 94

2.7Mdownloads / year

0.0%test coverage

12/13flavors OK

Overview

About

Maintained by William RevelleCRAN page ↗Website ↗

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.

Changes in 2.6.9

Introduction

The psych package includes functions and data sets to do classic and modern psychometrics and to analyze personality and experimental psychological data sets. The functions are written to further research in the Personality-Motivation-Cognition Laboratory at Northwestern University. The psych package has been developed as a supplement to courses in research methods in psychology, personality research, and graduate level psychometric theory courses. The functions are a supplement to the text (in progress): An introduction to psychometric theory with applications in R.
Additional functions are added sporadically.
This news file reports changes that have been made as the package has been developed.
To report bugs, send email to mailto:revelle@northwestern.edu using bug.report.
Version 2.6.10 is the development release of the psych package. It is available as a source file for Macs or PCs in the repository at https://personality-project.org/r/. The released version on CRAN is 2.6.9 (Added September, 2026). The second digit reflects the year (i.e., 2026), the third set the month (i.e., 2.6.6 was released in June of 2026 the last two digits of development versions reflect either an minor change or the day of any modifications, e.g. 1.8.3.3 was the third attempt to get 1.8.3 released. 1.7.8 was released in August, 2017.
To install the development version, use the command: install.packages("psych", repos="https://personality-project.org/r", type="source"). Remember to restart R and library(psych) to make the new version active. It is also useful to check the date of the development package, as I will use the same version number but change the dates (e.g., packageDate("psych")). The date of the CRAN version reflects when it was submitted.

From inst/NEWS.Rd in the release

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("psych", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-psych

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-psych

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-psych

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

1ERROR12OK

Check messages

ERRORre-building of vignette outputsr-devel-linux-x86_64-debian-gcc

Error(s) in re-building vignettes:
  ...
--- re-building ‘scoring.Rnw’ using knitr

Quitting from scoring.Rnw:210-214 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cannot open the connection to 'https://personality-project.org/r/psych/HowTo/scoring.tutorial/small.msq.txt'
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Quitting from scoring.Rnw:210-214 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
file(file, "rt")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'scoring.Rnw' failed with diagnostics:
cannot open the connection to 'https://personality-project.org/r/psych/HowTo/scoring.tutorial/small.msq.txt'
--- failed re-building ‘scoring.Rnw’

SUMMARY: processing the following file failed:
  ‘scoring.Rnw’

Error: Vignette re-building failed.
Execution halted

CRAN check page ↗

Slowest check: 9.6 min · r-oldrel-windows-x86_64

Status changes

ERROR12 OK, 1 ERROR2026-10-22
OK13 OK2026-10-03
NOTE11 OK, 2 NOTE2026-07-16
OK13 OK2026-05-06
ERROR12 OK, 1 ERROR2026-05-04

Show 1 earlier changeHide 1 earlier change

OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.6.9

READMENoVignettesYes · 1 · dynamicNEWSYes · mentions 2.6.9Citation fileYes · software entry onlyWebsiteYes

Help pages: 188includes a package overview page
Examples that run: 89%161 run in a plain check · 3 only when donttest examples are enabled (R CMD check --as-cran) · 5 never run · 11 hold no code
Exported functions with examples: 95%
Documented parameters: 99%
Return-value docs: 95%
Help pages citing references: 65%

Vignettes (1)

Scoring scales with psych PDF

How these are measured

Downloads

2.7M

CRAN downloads in the past year

Rank #224 · ~7.4K/day · ~224.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

252.3K30 days

622.9K90 days

2.7M1 year

Compare downloads with other packages →

Also on9.9K r2u250 autocran28.9K conda_forge432 bioconda620 c2d4u

How downloads are counted

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Installing psych adds 2 packages (1 with compiled code, 1.7 MB of source tarballs). Heaviest: GPArotation 1.6 MB, mnormt 63 KB.

Depends (0)

none

Imports (9)

mnormtparallelstatsgraphicsgrDevicesmethodslatticenlmeGPArotation

LinkingTo (0)

none

Suggests (7)

psychTools lavaan lme4 Rcsdp graph knitr Rgraphviz

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

214direct

120indirect

Depends 14 · Imports 200

Suggested by 94

Show the 48 most downloaded dependentsHide the 48 most downloaded dependents

Depends, Imports or LinkingTo, most downloaded first

and 166 more dependents and 94 packages that suggest it on CRAN ↗

How these are counted

Code & Tests

Datasets

People & History

People (1)

William Revelle

Author, Maintainer since 1.0-17 (2007)

Releases (98)

Pick two releases to compare their code metrics.

2.6.9Latest
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2026-09-30 · current release · diff ↗ ·
added 2 exports
invMatSqrt, matSqrt
2.6.5
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2026-05-16 · diff ↗ ·
added 1 export
vech
R
R 4.6.0 released · 2026-04-24
2.6.3
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2026-03-25 · diff ↗ ·
added 3 exports
r2alpha, biPlot, irt.CFA
2.6.1
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2026-02-03 · diff ↗ ·
added 5 exports
CFA, CFA.bifactor, fsi, lavParse, omegaStats
2.5.6
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2025-06-23 · diff ↗ ·
added 2 exports
cohenPooled, corInfo
R
R 4.5.0 released · 2025-04-11
2.5.3
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2025-03-21 · diff ↗
2.4.12
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2024-12-23 · diff ↗
2.4.6.26
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2024-06-27 · diff ↗ ·
added 4 exports
lmCorLookup, removeMissing, r2p, RV
R
R 4.4.0 released · 2024-04-24
2.4.3
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2024-03-19 · diff ↗ ·
added 2 exports
paSelect, vssSelect
2.4.1
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2024-01-18 · diff ↗ ·
added 1 export
itemSort
2.3.12
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2023-12-20 · diff ↗ ·
removed 2 exports
setCor.diagram, setCorLookup

added 4 exports
cancorDiagram, corTest, esemDiagram, lmCor.diagram
2.3.9
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2023-09-26 · diff ↗
2.3.6
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2023-06-21 · diff ↗ ·
added 2 exports
lmDiagram, RMSEA

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R
R 4.3.0 released · 2023-04-21
2.3.3
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2023-03-18 · diff ↗ ·
added 2 exports
eigenCi, lmCor
2.2.9
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2022-09-29 · diff ↗ ·
added 6 exports
alpha2r, crossValidationBoot, faRegression, faReg, matMult, SAPAfy
2.2.5
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2022-05-10 · diff ↗ ·
added 2 exports
cd.validity, validityItem
R
R 4.2.0 released · 2022-04-22
2.2.3
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2022-03-19 · diff ↗ ·
added 9 exports
bigCor, cohen.profile, congruence, distance, faRotations, m2d, pairwiseCountBig, scoreBy, superCor
2.1.9
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2021-09-22 · diff ↗ ·
added 2 exports
item.validity, predicted.validity
2.1.6
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2021-06-18 · diff ↗ ·
added 7 exports
d2OVL, d2OVL2, d2CL, d2U3, makePositiveKeys, plot.reliability, reliability
R
R 4.1.0 released · 2021-05-18
2.1.3
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2021-03-27 · diff ↗ ·
added 4 exports
cta, cta.15, pairwiseZero, pairwiseSample
2.0.12
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2020-12-16 · diff ↗ ·
removed 2 exports
cta.15, cta

added 1 export
fa.pooled
2.0.9
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2020-10-05 · diff ↗
2.0.8
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2020-09-04 · diff ↗ ·
added 1 export
simCor
2.0.7
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2020-07-26 · diff ↗ ·
added 10 exports
nchar2numeric, crossValidation, multi.curved.arrow, multi.rect, multi.arrow, multi.self, lookupItems, matPlot, responseFrequency, violin
R
R 4.0.0 released · 2020-04-24
1.9.12.31
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2020-01-09 · diff ↗ ·
added 2 exports
isCovariance, setCorLookup
1.9.12
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2019-12-20 · diff ↗ ·
removed 22 exports
cor2latex, df2latex, dfOrder, fa2latex, fileCreate, filesInfo, filesList, fileScan, ICC2latex, irt2latex, omega2latex, read.clipboard, read.clipboard.csv, read.clipboard.fwf, read.clipboard.tab, read.clipboard.lower, read.clipboard.upper, read.file, read.file.csv, read.https, write.file, write.file.csv

added 8 exports
faRotate, lookupFromKeys, make.irt.stats, pairwisePlot, Pinv, scoreWtd, sim.bonds, TargetT
R
R 3.6.0 released · 2019-04-26
1.8.12
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2019-01-13 · diff ↗ ·
added 7 exports
bassAckward, bassAckward.diagram, extension.diagram, faCor, fparse, manhattan, matSort
1.8.10
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2018-10-31 · diff ↗ ·
added 9 exports
d.robust, directSl, m2t, omegaDirect, pairwiseCount, pairwiseImpute, pairwiseReport, Procrustes, scoreVeryFast
1.8.4
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2018-05-06 · diff ↗ ·
added 3 exports
acs, cs, fromTo
R
R 3.5.0 released · 2018-04-23
1.8.3.3
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2018-03-30 · diff ↗ ·
added 8 exports
alpha.ci, AUC, describeFast, fileCreate, filesInfo, filesList, fileScan, testRetest
1.7.8
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2017-09-09 · diff ↗ ·
added 12 exports
cohen.d, cohen.d.ci, cohen.d.by, corPlotUpperLowerCi, d.ci, d2t, fa.random, fa.sapa, selectFromKeys, sem.diagram, sem.graph, t2d
1.7.5
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2017-05-03 · diff ↗ ·
added 4 exports
cor2cov, irt.se, mixedCor, quickView
R
R 3.4.0 released · 2017-04-21
1.7.3.21
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2017-03-22 · diff ↗ ·
added 9 exports
autoR, multilevel.reliability, mlr, mlArrange, mlPlot, r2c, scatterHist, sim.multi, unidim
1.6.12
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2017-01-08 · diff ↗ ·
added 5 exports
char2numeric, dfOrder, interbattery, isCorrelation, test.irt
1.6.9
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2016-09-17 · diff ↗ ·
added 19 exports
chi2r, cor2, error.dots, esem, esem.diagram, g2r, keys.lookup, keys2list, levels2numeric, read.file, read.file.csv, r2chi, scoreFast, scoreIrt, scoreIrt.1pl, scoreIrt.2pl, t2r, write.file, write.file.csv
1.6.6
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2016-06-28 · diff ↗ ·
added 4 exports
anova.psych, cosinor.period, error.bars.tab, pca
1.6.4
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2016-05-12 · diff ↗ ·
added 5 exports
corPlot, corCi, fa.multi, fa.multi.diagram, matReg
R
R 3.3.0 released · 2016-05-03
1.5.8
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2015-08-30 · diff ↗
1.5.6
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2015-07-08 · diff ↗ ·
added 1 export
moderate.diagram
1.5.4
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2015-04-27 · diff ↗ ·
removed 2 exports
best.items, best.scales

added 10 exports
bestItems, bestScales, circadian.phase, cosinor.plot, circadian.reliability, circadian.sd, circadian.F, circadian.stats, cta.15, sim.correlation
R
R 3.2.0 released · 2015-04-16
1.5.1
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2015-01-21 · diff ↗ ·
added 6 exports
mediate, mediate.diagram, setCor, setCor.diagram, YuleCor, YuleBonett
1.4.8.11
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2014-08-12 · diff ↗
1.4.8
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2014-08-11 · diff ↗ ·
added 11 exports
draw.cor, equamax, faBy, het.diagram, histBy, outlier, polydi, read.https, scoreOverlap, varimin, vgQ.varimin
1.4.5
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2014-05-14 · diff ↗ ·
added 2 exports
con2cat, cor.plot.upperLowerCi
1.4.4
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2014-04-14 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.4.3
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2014-03-25 · diff ↗ ·
added 6 exports
best.scales, densityBy, fa.organize, item.lookup, nfactors, violinBy
1.4.2.3
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2014-02-04 · diff ↗
1.4.2
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2014-02-03 · diff ↗ ·
added 5 exports
cor.smoother, fa.congruence, fa.stats, fa.lookup, pairwiseDescribe
1.4.1
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2014-01-20 · diff ↗ ·
added 7 exports
best.items, describeData, ICC2latex, lookup, omega2latex, scoreItems, tableF
1.3.12
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2013-12-12 · diff ↗ ·
added 2 exports
corFiml, splitHalf
1.3.10.12
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2013-10-14 · diff ↗
1.3.10
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2013-10-07 · diff ↗ ·
added 8 exports
cor.ci, iclust.sort, phi2tetra, shannon, sim.spherical, sim.poly.mat, test.all, Yule2tetra
R
R 3.0.0 released · 2013-04-03
1.3.2
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2013-02-26 · diff ↗
1.2.12
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2013-01-20 · diff ↗ ·
added 11 exports
cor2latex, d2r, fa.extend, fa2irt, fa2latex, irt2latex, KMO, mssd, reflect, r2d, rmssd
1.2.8
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2012-09-21 · diff ↗ ·
added 13 exports
cor.wt, describeBy, errorCircles, fa.plot, headTail, irt.responses, lowerUpper, sim.multilevel, statsBy, statsBy.boot, statsBy.boot.summary, superMatrix, topBottom
1.2.4
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2012-09-17 · diff ↗ ·
removed 4 exports
lower.mat, panel.lm, panel.cor, panel.cor.scale

added 5 exports
circular.mean, circular.cor, fa.rgraph, lowerCor, lowerMat
R
R 2.15.0 released · 2012-03-30
1.2.1
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2012-02-16 · diff ↗ ·
added 9 exports
lower.mat, plot.residuals, progressBar, psych.misc, residuals.psych, resid.psych, sim.poly.ideal, sim.poly.ideal.npl, sim.poly.ideal.npn
1.1.1111
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2011-11-15 · diff ↗
1.1.12
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2012-01-02 · diff ↗ ·
added 1 export
sim.general
1.1.11
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2011-11-02 · diff ↗
R
R 2.14.0 released · 2011-10-31
1.1.10
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2011-10-17 · diff ↗ ·
removed 1 export
make.structural

added 25 exports
bifactor, biquartimin, cor2dist, cor.smooth, corr.p, df2latex, dia.cone, dummy.code, irt.stats.like, irt.tau, kaiser, keysort, parcels, radar, rangeCorrection, score.irt, score.irt.2, score.irt.poly, sim.poly, sim.poly.npl, sim.poly.npn, spider, TargetQ, vgQ.bimin, vgQ.targetQ
1.0-98
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2011-06-09 · diff ↗
1.0-97
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2011-05-15 · diff ↗ ·
added 6 exports
fa.parallel.poly, fac, fa.poly, omegah, plot.poly.parallel, set.cor
R
R 2.13.0 released · 2011-04-13
1.0-96
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2011-04-06 · diff ↗
1.0-95
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2011-03-31 · diff ↗ ·
added 2 exports
fa.extension, scatter.hist
1.0-94
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2011-01-09 · diff ↗
1.0-93
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2010-12-23 · diff ↗ ·
added 7 exports
biplot.psych, bi.bars, irt.select, lavaan.diagram, mardia, mixed.cor, predict.psych
R
R 2.12.0 released · 2010-10-15
1.0-92
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2010-09-22 · diff ↗
1.0-91
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2010-09-15 · diff ↗ ·
removed 2 exports
omega.sem, tetrachor

added 14 exports
biserial, draw.tetra, iclust, irt.fa, omegaSem, omegaFromSem, plot.irt, plot.poly, polychoric, polyserial, response.frequencies, scrub, tetrachoric, vss
1.0-90
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2010-07-24 · diff ↗ ·
added 1 export
sim.omega
1.0-89
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2010-06-28 · diff ↗ ·
removed 2 exports
panel.hist.density, panel.hist

added 1 export
scree
1.0-88
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2010-04-27 · diff ↗ ·
added 1 export
block.random
R
R 2.11.0 released · 2010-04-22
1.0-87
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2010-04-06 · diff ↗ ·
added 15 exports
cohen.kappa, glb.algebraic, glb.fa, logit, logistic, logistic.grm, minkowski, read.clipboard.fwf, reverse.code, sim.parallel, sim.rasch, sim.irt, sim.npl, sim.npn, tetrachor
1.0-85
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2009-12-20 · diff ↗ ·
added 5 exports
diagram, dia.shape, dia.triangle, dia.curved.arrow, sim.minor
1.0-83
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2009-10-26 · diff ↗
R
R 2.10.0 released · 2009-10-26
1.0-81
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2009-10-05 · diff ↗
1.0-80
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2009-09-30 · diff ↗ ·
added 14 exports
dia.rect, dia.ellipse, dia.ellipse1, dia.arrow, dia.curve, dia.self, fa.diagram, fa.sort, iclust.diagram, omega.diagram, structure.diagram, winsor.mean, winsor.sd, winsor.var
1.0-78
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2009-07-30 · diff ↗
1.0-77
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2009-07-27 · diff ↗
1.0-76
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2009-07-18 · diff ↗
1.0-75
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2009-07-01 · diff ↗
1.0-74
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2009-06-26 · diff ↗ ·
added 2 exports
mat.sort, read.clipboard.tab
1.0-72
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2009-06-02 · diff ↗ ·
added 3 exports
fa, factor.wls, factor.scores
1.0-70
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2009-05-25 · diff ↗ ·
added 6 exports
cor.plot, factor.minres, factor.stats, sim.anova, sim.simplex, target.rot
R
R 2.9.0 released · 2009-04-17
1.0-67
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2009-03-27 · diff ↗ ·
added 1 export
corr.test
1.0-65
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2009-02-08 · diff ↗ ·
removed 1 export
alpha.scale

added 3 exports
alpha, cta, sim.structure
1.0-63
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2009-01-25 · diff ↗ ·
added 6 exports
factor.plot, omega.sem, Promax, phi.list, structure.list, structure.sem
1.0-62
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2009-01-05 · diff ↗
1.0-61
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2009-01-05 · diff ↗ ·
removed 4 exports
bartlett.cortest, jennrich.cortest, mat.cortest, normal.cortest

added 22 exports
circadian.cor, circadian.linear.cor, circadian.mean, cortest, cortest.bartlett, cortest.jennrich, cortest.mat, cortest.normal, cosinor, make.congeneric, make.structural, sim, sim.circ, simulation.circ, sim.congeneric, sim.dichot, sim.item, sim.structural, sim.hierarchical, sim.VSS, super.matrix, structure.graph
R
R 2.8.0 released · 2008-10-20
1.0-58
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2008-09-10 · diff ↗ ·
added 7 exports
glb, guttman, partial.r, plot.psych, print.psych, summary.psych, tenberge
1.0-51
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2008-07-12 · diff ↗ ·
added 18 exports
bartlett.cortest, cluster2keys, comorbidity, ICC, jennrich.cortest, wkappa, make.keys, mat.cortest, normal.cortest, read.clipboard.lower, read.clipboard.upper, scaling.fits, SD, smc, thurstone, tr, VSS.sim, winsor.means
R
R 2.7.0 released · 2008-04-22
1.0-42
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2008-03-24 · diff ↗ ·
removed 2 exports
polychor.matrix, psycho.demo

added 33 exports
circ.sim.plot, ellipses, error.bars.by, fisherz2r, headtail, interp.median, interp.quantiles, interp.q, interp.quart, interp.quartiles, interp.values, interp.boxplot, interp.qplot.by, panel.lm, panel.hist.density, panel.hist, panel.cor, panel.cor.scale, phi2poly.matrix, phi.demo, rescale, r.con, r.test, r2t, table2df, table2matrix, Yule, Yule.inv, Yule2phi, Yule2phi.matrix and 3 more
1.0-33
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2007-10-11 · diff ↗ ·
added 9 exports
cluster.plot, error.bars, item.dichot, polar, p.rep, p.rep.f, p.rep.r, p.rep.t, score.multiple.choice
R
R 2.6.0 released · 2007-10-03
1.0-27
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2007-08-03 · diff ↗ ·
added 1 export
error.crosses
1.0-25
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2007-06-04 · diff ↗
1.0-23
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2007-05-29 · diff ↗ ·
added 8 exports
congeneric.sim, fa.parallel, fa.graph, ICLUST.rgraph, item.sim, omega.graph, poly.mat, test.psych
1.0-18
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2007-05-10 · diff ↗ ·
added 1 export
kurtosi
1.0-17
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2007-05-06
R
R 2.5.0 released · 2007-04-24

Package metadata

First published: 2007-05-06
Total releases: 98 / 19 yrs
License: GPL (>= 2) OSI
Bundled data: 84 KB / 30 files
Download size: 1.1 MB

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Psychometric Models and Methods

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APA

Balamuta, J. J. (2026). R Observatory: Metrics for psych version 2.6.9 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

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