item.total {multilevel}

Item-total correlations

Description

Calculates item-total correlations in multi-item scales.

Usage

item.total(items)

Arguments

items

A matrix or dataframe where each column represents an item in a multi-item scale.

Value

Variable

Variable examined in the reliability analyses.

Item.Total

The item correlation with the mean of the other items.

Alpha.Without

The Cronbach Alpha reliability estimate of the scale without the variable.

N

The number of observations on which the analyses were calculated.

Author(s)

Paul Bliese [e-mail]

References

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

See Also

cronbach

Examples

   data(bhr2000)
   item.total(bhr2000[,2:11])