R Observatory: Metrics for coefficientalpha version 0.7.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

coefficientalpha

0.7.2Package record

Robust Coefficient Alpha and Omega with Missing and Non-Normal Data

0packages depend

4Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by Zhiyong ZhangCRAN page ↗

Cronbach's alpha and McDonald's omega are widely used reliability or internal consistency measures in social, behavioral and education sciences. Alpha is reported in nearly every study that involves measuring a construct through multiple test items. The package 'coefficientalpha' calculates coefficient alpha and coefficient omega with missing data and non-normal data. Robust standard errors and confidence intervals are also provided. A test is also available to test the tau-equivalent and homogeneous assumptions. Since Version 0.5, the bootstrap confidence intervals were added.

Install

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

install.packages("coefficientalpha", 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-coefficientalpha

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-coefficientalpha

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-coefficientalpha

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Zhiyong Zhang <johnnyzhz@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Zhiyong",
                      family = "Zhang",
                      role = c("aut", "cre"),
                      email = "johnnyzhz@gmail.com"),
               person(given = "Ke-Hai",
                      family = "Yuan",
                      role = "aut"))
as necessary.

CRAN check page ↗

Slowest check: 1.2 min · r-devel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTENow
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.7.2

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 7includes a package overview page
Examples that run: 100%5 run in a plain check
Exported functions with examples: 100%
Documented parameters: not tracked
Return-value docs: not tracked
Help pages citing references: 86%

How these are measured

Downloads

4K

CRAN downloads in the past year

Rank #7,839 · ~11/day · ~332/mo

Releases R versions

Daily download trend is not available in this view yet.

48330 days

1.2K90 days

4K1 year

Compare downloads with other packages →

Also on108 r2u9 autocran22 c2d4u

How downloads are counted

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Installing coefficientalpha adds 6 packages (3 with compiled code, 1.8 MB of source tarballs). Heaviest: lavaan 1.6 MB, numDeriv 74 KB, mnormt 63 KB.

Depends (2)

rsem lavaan

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (from the free-text Author field) (2)

Zhiyong Zhang

Ke-Hai Yuan

Maintainer since 0.2.5 (2013)

Releases (8)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.7.2Latest
record
2023-08-27 · current release · diff ↗
0.7.1
record
2023-08-26 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.7
record
2020-04-22 · diff ↗
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
0.5
record
2015-05-31 · diff ↗
R
R 3.2.0 released · 2015-04-16

Show 6 earlier eventsHide 6 earlier events

0.3.3
record
2014-12-10 · diff ↗
0.3.2
record
2014-11-14 · diff ↗
R
R 3.1.0 released · 2014-04-10
0.2.6
record
2013-04-25 · diff ↗
0.2.5
record
2013-04-13
R
R 3.0.0 released · 2013-04-03

Package metadata

First published: 2013-04-13
Total releases: 8 / 13 yrs
License: GPL
Bundled data: 2.4 KB / 1 file
Download size: 320 KB

Appears in task views

Missing Data

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("coefficientalpha")

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 coefficientalpha version 0.7.2 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →