R Observatory: Metrics for psych version 2.6.5

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

psych

2.6.5

Procedures for Psychological, Psychometric, and Personality Research

294packages depend

2.6Mdownloads / year

0.0%test coverage

8/13checks pass

Overview

About

Maintained by William RevelleFirst published 2007-05-0697 releasesCRAN page ↗

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.

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.

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).

Health

CRAN checks

5NOTE8OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc
NOTE r-devel-windows-x86_64

Slowest check: 9.8 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.01

0.0%

Coverage · measured lines

100%

Documentation · exports

9

Dependencies · direct

Check history

NOTE2026-07-16
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-05-06
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-05-04
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 97%
Documented parameters: 99%
Return-value docs: 95%
References docs: 65%

Downloads

2.6M

CRAN downloads in the past year

Rank #236 · ~7.2K/day · ~220.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

158.6K30 days

587.1K90 days

2.6M1 year

Compare downloads with other packages →

Also on6.6K r2u259 autocran22.1K conda_forge414 bioconda327 c2d4u

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

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

294direct

115indirect

and 246 more packages.

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

William Revelle

Author, Maintainer

Authors (1)

William Revelle

Author, Maintainer

Package Timeline

97 releases. Pick two to compare their code metrics. R releases are shown for context.

2.6.5Latest
2026-05-16 · current release · diff ↗
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R 4.6.0 released · 2026-04-24
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R 4.5.0 released · 2025-04-11
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R 4.3.0 released · 2023-04-21

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R 3.2.0 released · 2015-04-16
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R 2.5.0 released · 2007-04-24

Package metadata

First published: 2007-05-06
Total releases: 97 / 19 yrs
License: GPL (>= 2) OSI
Bundled data: 84 KB / 30 files
Download size: 1.1 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Psychometric Models and Methods

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("psych")

Format

Revelle, W. (2026). psych: Procedures for Psychological, Psychometric, and Personality Research (Version 2.6.5) [Computer software]. https://doi.org/10.32614/CRAN.package.psych

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for psych version 2.6.5 [Data set]. HJJB, LLC. Data release v2026-08-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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