isop.sysch {ISOP}R Documentation

Generates a table of system charactics proposed by Scheiblechner (1995, 2003)

Description

This function generates system characteristics proposed by Scheiblichner. These are much like 2-dimensional item characteristics, but extended by one dimension - the person parameter.

Usage

isop.sysch(raw)

Arguments

raw

The data, the system characteristics should be determined for.

Value

A table containing the system characteristics

Author(s)

Stefan Nachtnebel

References

Hartmann Scheiblechner (2003) Nonparametric IRT: Testing the bi-isotonicity of isotonic probabilistic models (ISOP) Psychometrika, 68, 1, 79–96

See Also

isop.calc1set, isop.plot3d, isop.plotFreqs


[Package ISOP version 1.0 Index]