IRT.irfprob.tam: Extracting Item Response Functions

In alexanderrobitzsch/TAM: Test Analysis Modules

Extracting Item Response Functions

Description

Extracts item response functions for models fitted in TAM. See CDM::IRT.irfprob for more details.

Usage

## S3 method for class 'tam'
IRT.irfprob(object, ...)

## S3 method for class 'tam.mml'
IRT.irfprob(object, ...)

## S3 method for class 'tam.mml.3pl'
IRT.irfprob(object, ...)

## S3 method for class 'tamaan'
IRT.irfprob(object, ...)

## S3 method for class 'tam.np'
IRT.irfprob(object, ...)

Arguments

object	Object of class tam, tam.mml, tam.mml.3pl, tam.np or tamaan.
...	Further arguments to be passed

Value

See CDM::IRT.irfprob.

Examples

#############################################################################
# EXAMPLE 1: Dichotomous data data.sim.rasch - item response functions
#############################################################################

data(data.sim.rasch)
# 1PL estimation
mod1 <- TAM::tam.mml(resp=data.sim.rasch)
IRT.irfprob(mod1)

alexanderrobitzsch/TAM documentation built on Feb. 21, 2024, 5:59 p.m.