multilevel (version 2.7)

cronbach: Estimate Cronbach's Alpha

Description

Calculates Cronbach's alpha estimate of reliability for a multi-item scale.

Usage

cronbach(items)

Arguments

items

An matrix or data frame where each column represents an item in a multi-item scale.

Value

Alpha

Estimate of Cronbach's Alpha.

N

The number of observations on which the Alpha was estimated.

References

Cronbach L. J. (1951) Coefficient Alpha and the internal structure of tests. Psychometrika, 16,297-334

See Also

cronbach

Examples

# NOT RUN {
   data(bhr2000)
   cronbach(bhr2000[,2:11])
# }