Package: reliacoef 1.0.1

reliacoef: Unidimensional and Multidimensional Reliability Coefficients

Calculates and compares various reliability coefficients for unidimensional and multidimensional scales. Supported unidimensional estimators include coefficient alpha, congeneric reliability, the Gilmer-Feldt coefficient, Feldt's classical congeneric reliability, Hancock's H, Heise-Bohrnstedt's omega, Kaiser-Caffrey's alpha, and Ten Berge and Zegers' mu series. Multidimensional estimators include stratified alpha, maximal reliability, correlated factors reliability, second-order factor reliability, and bifactor reliability. See Cho (2021) <doi:10.1007/s11336-021-09801-1>, Cho (2024) <doi:10.1037/met0000475>, Cho (2025) <doi:10.1037/met0000525>.

Authors:Eunseong Cho [aut, cre]

reliacoef_1.0.1.tar.gz
reliacoef_1.0.1.zip(r-4.7)reliacoef_1.0.1.zip(r-4.6)reliacoef_1.0.1.zip(r-4.5)
reliacoef_1.0.1.tgz(r-4.6-any)reliacoef_1.0.1.tgz(r-4.5-any)
reliacoef_1.0.1.tar.gz(r-4.7-any)reliacoef_1.0.1.tar.gz(r-4.6-any)
reliacoef_1.0.1.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
reliacoef/json (API)

# Install 'reliacoef' in R:

install.packages('reliacoef', repos = c('https://eunscho.r-universe.dev', 'https://cloud.r-project.org'))

Datasets:

Cho_multi - Synthetic Multi-dimensional Covariance Matrix from Cho
Cho2016 - Cho's (2016) artificial unidimensional data of four items
Graham1 - Graham's (2006) first unidimensional data

On CRAN:

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

2.70 score 1 scripts 425 downloads 28 exports 11 dependencies

Last updated from:c9aaf5ce28. Checks:9 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	OK	137
source / vignettes	OK	172
linux-release-x86_64	OK	146
macos-release-arm64	OK	85
macos-oldrel-arm64	OK	90
windows-devel	OK	112
windows-release	OK	91
windows-oldrel	OK	105
wasm-release	OK	106

Exports:alpha bifactor correlated_factors feldt get_cov gilmer hancock hancockan heise joreskog kaisercaffrey lambda4_max lambda5 lambda6 maximal_reliability mu1 mu2 mu3 mu4 multirel nunnally second_order simsek std_alpha stratified_alpha test.tauequivalence uni_cfa unirel

Dependencies:GPArotation lattice lavaan MASS matrixcalc mnormt nlme numDeriv pbivnorm psych quadprog

Introduction to reliacoef

Rendered fromintroduction.Rmdusingknitr::rmarkdown

Last update: 2026-03-05
Started: 2026-03-05

Help page	Topics
Obtain Coefficient Alpha	alpha
Obtain bifactor reliability estimates	bifactor
Synthetic Multi-dimensional Covariance Matrix from Cho (2025)	Cho_multi
Cho's (2016) artificial unidimensional data of four items	Cho2016
Obtain correlated factors reliability estimates	correlated_factors
Obtain Feldt's classical congeneric reliability coefficient	feldt
Obtain the Covariance Matrix	get_cov
Obtain the Gilmer-Feldt reliability coefficient	gilmer
Graham's (2006) first unidimensional data	Graham1
Obtain Hancock's H (CFA version of maximal reliability)	hancock
Obtain Hancock and An's (2020) coefficient	hancockan
Obtain Heise-Bohrnstedt's Omega	heise
Obtain Joreskog's congeneric reliability (Unidimensional CFA reliability)	joreskog
Obtain Kaiser-Caffrey's alpha (principal component analysis reliability)	kaisercaffrey
Obtain Ten Berge and Zegers' (1978) mu1	lambda2
Obtain the Maximum Split-Half Reliability (Lambda4)	lambda4_max
Obtain Guttman's Lambda5	lambda5
Obtain Guttman's Lambda6	lambda6
Obtain maximal reliability estimates of two-dimensional data	maximal_reliability
Obtain Ten Berge and Zegers' (1978) mu1	mu1
Obtain Ten Berge and Zegers' (1978) mu2	mu2
Obtain Ten Berge and Socan's (2004) mu3	mu3
Obtain Ten Berge and Socan's (2004) mu4	mu4
Obtain multidimensional parallel reliability	multi_parallel
Compare multiple multidimensional reliability estimates	multirel
Obtain bottom-up approach multidimensional reliability estimates	nunnally
Obtain second-order factor reliability estimates	second_order
Obtain Simsek-Noyan's theta (multidimensional PCA reliability)	simsek
Obtain standardized alpha	std_alpha
Obtain stratified alpha reliability estimates	stratified_alpha
Test the essential tau-equivalence of the data	test.tauequivalence
Unidimensional confirmatory factor analysis	uni_cfa
Obtain Various Unidimensional Reliability Coefficients	unirel

Package: reliacoef 1.0.1

reliacoef: Unidimensional and Multidimensional Reliability Coefficients

Citation

Readme and manuals

Help Manual

Usage by other packages (reverse dependencies)