Quotation Rusch, Thomas, Mair, Patrick, Hatzinger, Reinhold. 2013. Psychometrics with R: A review of CRAN packages for item response theory. Discussion Paper Series / Center for Empirical Research Methods, Report 2013/2. WU Vienna University of Economics and Business, Vienna.


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Abstract

In this paper we review the current state of R packages for Item Response Theory (IRT). We group the available packages based on their purpose and provide an overview of each package's main functionality. Each of the packages we describe has a peer-reviewed publication associated with it. We also provide a tutorial analysis of data from the 1990 Workplace Industrial Relation Survey to show how the breadth and exibility of IRT packages in R can be leveraged to conduct even challenging item analyses with versatility and ease. These items relate to the type of consultations that are carried out in a firm when major changes are implemented. We first use unidimensional IRT models just to discover that they fit do not fit well. We then use nonparametric IRT to explore the possible causes for the scaling problem. Based on the results from the exploration, we finally use a two-dimensional model on a subset of the original items to achieve a good fit with a sensible interpretation, namely that there are two types of consultations a firm may engage in: consultations with workers/representatives from the firm and with official union representatives. The different items relate mostly to one of these dimensions and firms can be scaled well along these two dimensions.

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Publication's profile

Status of publication Published
Affiliation WU
Type of publication Working/discussion paper, preprint
Language English
Title Psychometrics with R: A review of CRAN packages for item response theory
Title of whole publication Discussion Paper Series / Center for Empirical Research Methods, Report 2013/2. WU Vienna University of Economics and Business, Vienna.
Year 2013
URL http://epub.wu.ac.at/4010/

Associations

People
Rusch, Thomas (Details)
Mair, Patrick (Former researcher)
Hatzinger, Reinhold (Former researcher)
Organization
Competence Center for Empirical Research Methods WE (Details)
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