mu4: Obtain Ten Berge and Socan's (2004) mu4

In eunscho/reliacoef: Compute and Compare Unidimensional and Multidimensional Reliability Coefficients

Obtain Ten Berge and Socan's (2004) mu4

Description

Obtain Ten Berge and Socan's (2004) mu4.

Usage

mu4(x, print = TRUE)

Arguments

x	a dataframe or a matrix (unidimensional)
print	If TRUE, the result is printed to the screen.

Details

The original formula and the formula of psych's tenberge() are different. There is a high possibility that the original formula is incorrect and psych's version is correct. According to Equation (4) of the original article, mu should increase monotonically (e.g., mu4>=mu3), but if the original formula is followed, it may decrease in some cases. The formula of the original paper is 2h, but changing it to 2^h solves this problem. This function follow the latter interpretation.

Author(s)

Eunseong Cho, [e-mail]

References

Ten Berge, J. M. F., & Zegers, F. E. (1978). A series of lower bounds to the reliability of a test. Psychometrika, 43(4), 575-579.

Examples

mu4(Graham1)

eunscho/reliacoef documentation built on Jan. 30, 2023, 12:16 a.m.