DeltaMhIrt: Obtains the ETS Delta measure for Mantel-Haneszel DIF...

Description Usage Arguments Value Author(s) References Examples

Description

Obtains the ETS Delta measure for Mantel-Haneszel DIF statistic effect size.

Usage

1
DeltaMhIrt(mh, logistic = FALSE)

Arguments

mh

A numeric vector containing the MH statistic values

logistic

A logical indicating whether the logistic or the normal metric should be used.

Value

delta A numeric vector containing the delta values

Author(s)

Victor H. Cervantes <vhcervantesb at unal.edu.co>

References

Holland, P.W., and Thayer, D.T. (1988). Differential Item Performance and the Mantel-Haenszel Procedure. In H. Wainer and H.I. Braun (Eds.), Test Validity. Hillsdale, NJ: Erlbaum.

Examples

1
2
3
4
5
6
7
data(dichotomousItemParameters)
threePlMh <- IrtMh(itemParameters = dichotomousItemParameters,  irtModel = "3pl",
                   focalDistribution = "norm",
                   referenceDistribution = "norm", focalDistrExtra = list(mean = 0, sd = 1),
                   referenceDistrExtra = list(mean = 0, sd = 1), groupRatio = 1,
                   logistic = FALSE)
delta3pl <- DeltaMhIrt(threePlMh)


Search within the DFIT package
Search all R packages, documentation and source code

Questions? Problems? Suggestions? or email at ian@mutexlabs.com.

Please suggest features or report bugs with the GitHub issue tracker.

All documentation is copyright its authors; we didn't write any of that.