coefficientalpha
Robust Coefficient Alpha and Omega with Missing and Non-Normal Data
Description
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.
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CRAN Check Status
Show all 14 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| r-devel-linux-x86_64-fedora-clang | OK |
| r-devel-linux-x86_64-fedora-gcc | OK |
| r-devel-macos-arm64 | OK |
| r-devel-windows-x86_64 | OK |
| r-oldrel-macos-arm64 | OK |
| r-oldrel-macos-x86_64 | OK |
| r-oldrel-windows-x86_64 | OK |
| r-patched-linux-x86_64 | OK |
| r-release-linux-x86_64 | OK |
| r-release-macos-arm64 | OK |
| r-release-macos-x86_64 | OK |
| r-release-windows-x86_64 | OK |
Check details (14 non-OK)
CRAN incoming feasibility
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 incoming feasibility
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.
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Check History
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 9, 2026
CRAN incoming feasibility
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 incoming feasibility
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.