tet {irtoys}

Approximate tetchoric correlation matrix

Description

Matrix of tetchoric correlations using the approximation by Bonett and Price (2005).

Usage

tet(d)

Arguments

d

a matrix (or data frame, which will be converted to a matrix) containing only zeroes an ones. NAs are not allowed.

Value

A matrix of approximate tetchoric correlations.

Author(s)

Ivailo Partchev

References

Douglas G. Bonett and Robert M. Price (2005). Inferential Methods for the Tetrachoric Correlation Coefficient. Journal of Educational and Behavioral Statistics, Vol. 30, No. 2, pp. 213–225

Examples

tets <- tet(Scored)