TAM: IRT.frequencies.tam – R documentation

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IRT.frequencies.tam

Observed and Expected Frequencies for Univariate and Bivariate Distributions

Description

Computes observed and expected frequencies for univariate and bivariate distributions for models fitted in TAM. See CDM::IRT.frequencies for more details.

Usage

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

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

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

Arguments

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

Value

See CDM::IRT.frequencies.

Examples

## Not run: 
#############################################################################
# EXAMPLE 1: Dichotomous data data.sim.rasch
#############################################################################

data(data.sim.rasch)
dat <- data.sim.rasch

# estimate model
mod1 <- TAM::tam.mml(dat)
# compute observed and expected frequencies
fmod1 <- IRT.frequencies(mod1)
str(fmod1)

## End(Not run)

TAM

Test Analysis Modules

v3.6-45

GPL (>= 2)

Authors

Alexander Robitzsch [aut,cre] (<https://orcid.org/0000-0002-8226-3132>), Thomas Kiefer [aut], Margaret Wu [aut]

Initial release

2021-04-22 14:35:52