IRT.factor.scores.tam: Extracting Factor Scores in 'TAM'

In alexanderrobitzsch/TAM: Test Analysis Modules

Extracting Factor Scores in TAM

Description

Extracts factor scores for models fitted in TAM. See CDM::IRT.factor.scores for more details.

Usage

## S3 method for class 'tam'
IRT.factor.scores(object, type="EAP", ...)

## S3 method for class 'tam.mml'
IRT.factor.scores(object, type="EAP", ...)

## S3 method for class 'tam.mml.3pl'
IRT.factor.scores(object, type="EAP", ...)

## S3 method for class 'tamaan'
IRT.factor.scores(object, type="EAP", ...)

Arguments

object	Object of class tam, tam.mml, tam.mml.3pl or tamaan.
type	Type of factor score to be used. type="EAP" can be used for all classes in TAM while type="WLE" and type="MLE" can only be used for objects of class tam.mml. Further arguments to the used function tam.wle can be specified with ....
...	Further arguments to be passed

Value

See CDM::IRT.factor.scores.

Examples

## Not run: 
#############################################################################
# EXAMPLE 1: data.sim.rasch - Different factor scores in Rasch model
#############################################################################

data(data.sim.rasch)
# 1PL estimation
mod1 <- TAM::tam.mml(resp=data.sim.rasch)
# EAP
pmod1 <- IRT.factor.scores( mod1 )
# WLE
pmod1 <- IRT.factor.scores( mod1, type="WLE" )
# MLE
pmod1 <- IRT.factor.scores( mod1, type="MLE" )

## End(Not run)

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