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pcIRT (version 0.1)

IRT models for polytomous and continuous item responses

Description

pcIRT estimates the multidimensional polytomous Rasch model (Rasch, 1961) and the Continous Rating Scale model (Mueller, 1987)

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Version

Install

install.packages('pcIRT')

Monthly Downloads

363

Version

0.1

License

GPL-3

Issues

1

Pull Requests

0

Stars

7

Forks

3

Maintainer

Christine Hohensinn

Last Published

January 12th, 2014

Functions in pcIRT (0.1)

pcIRT-package

IRT models for polytomous and continuous item responses
dLRT

Dimensionality test for the multidimensional polytomous Rasch model
LRT

Computes Andersen's Likelihood Ratio Test for the multidimensional polytomous Rasch model
MPRM

Estimation of Multidimensional Polytomous Rasch model (Rasch, 1961)
gmc

Graphical model check
simCRSM

simulate data according to CRSM
person_par

Estimation of person parameters
example2

Simulated data set
example1

Simulated estimation results
weight_test

Test for the scoring weights in the unidimensional polytomous Rasch model
simMPRM

simulate data according to MPRM
MPRMl

Estimation of Multidimensional Polytomous Rasch model with linear restrictions
CRSM

Estimation of Continuous Rating Scale Model (Mueller, 1987)