MDISC: Compute multidimensional discrimination index

In mirt: Multidimensional Item Response Theory

Compute multidimensional discrimination index

Description

Returns a vector containing the MDISC values for each item in the model input object (Reckase, 2009).

Usage

MDISC(x, group = NULL)

Arguments

x	an object of class 'SingleGroupClass', or an object of class 'MultipleGroupClass' if a suitable group input were supplied
group	group argument to pass to extract.group function. Required when the input object is a multiple-group model

Author(s)

Phil Chalmers [e-mail]

References

Chalmers, R., P. (2012). mirt: A Multidimensional Item Response Theory Package for the R Environment. Journal of Statistical Software, 48(6), 1-29. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.18637/jss.v048.i06")}

Reckase, M. D. (2009). Multidimensional Item Response Theory. Springer.

See Also

extract.group

Examples

## Not run: 

mod <- mirt(Science, 2)
MDISC(mod)


## End(Not run)

mirt documentation built on Sept. 11, 2024, 7:14 p.m.