tau.test {coefficientalpha}

Test the tau-equivalence and the homogeneity of items

Description

Calculate alpha or omega for a given data set.

Usage

tau.test(y, varphi = 0.1, complete = FALSE, drop)

Arguments

y

Data

varphi

Downweight rate

complete

Calculate alpha/omega only based on complete data (listwise deletion)

drop

The row number of cases to be dropped from the analysis.

Author(s)

Zhiyong Zhang and Ke-Hai Yuan

References

Zhang, Z. & Yuan, K.-H. (2014). Robust Coefficients Alpha and Omega and their Confidence Intervals: Methods and Software.

Examples

data(example)
tau.test(example)