alpha: Robust Cronbach's alpha with missing and non-normal data
Version 0.2.4

Cronbach's alpha is one of the most 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 Cronbach's coefficient alpha with missing data and non-normal data. Robust standard error and confidence interval are also provided.

Browse man pages Browse package API and functions Browse package files

AuthorZhiyong Zhang and Ke-Hai Yuan
Date of publication2013-03-28 13:51:32
MaintainerZhiyong Zhang <zzhang4@nd.edu>
LicenseGPL
Version0.2.4
Package repositoryView on R-Forge
InstallationInstall the latest version of this package by entering the following in R:
install.packages("alpha", repos="http://R-Forge.R-project.org")

Man pages

alpha-package: Robust Cronbach's alpha with missing and non-normal data
cronbach: Robust Cronbach's alpha
plot.alpha: Alpha related plot
rsem.Ascov: Sandwich-type covariance matrix
rsem.DP: Generate a duplication matrix
rsem.emmusig: Robust mean and covariance matrix using Huber-type weight
rsem.gname: Internal function
rsem.pattern: Obtaining missing data patterns
rsem.vec: Stacking a matrix to a vector
rsem.weight: Calculate weight for each subject
summary.alpha: Print alpha and its confidence interval.
y: An example data set

Functions

alpha Man page
alpha-package Man page
cronbach Man page Source code
plot Man page
plot.alpha Man page Source code
rsem.Ascov Man page Source code
rsem.DP Man page Source code
rsem.emmusig Man page Source code
rsem.gname Man page Source code
rsem.pattern Man page Source code
rsem.vec Man page Source code
rsem.weight Man page Source code
summary Man page
summary.alpha Man page Source code
y Man page

Files

man
man/y.Rd
man/rsem.DP.Rd
man/rsem.pattern.Rd
man/plot.alpha.Rd
man/summary.alpha.Rd
man/rsem.Ascov.Rd
man/rsem.gname.Rd
man/rsem.emmusig.Rd
man/rsem.vec.Rd
man/alpha-package.Rd
man/cronbach.Rd
man/rsem.weight.Rd
DESCRIPTION
data
data/holzinger.txt.gz
NAMESPACE
R
R/Cronbach.R
alpha documentation built on May 21, 2017, 3:43 a.m.