multilevel (version 2.5)

item.total: Item-total correlations

Description

This function 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-total correlation.

Alpha.Without

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

N

The number of observations on which the analyses were calculated.

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])