Model Builder for Item Factor Analysis with OpenMx

Authors

Joshua N. Pritikin, University of Virginia
Karen M. Schmidt, University of Virginia

Date of this Version

8-2016

Document Type

Article

Citation

The R Journal (August 2016) 8(1); Editor: Michael Lawrence

Comments

Copyright 2016, The R Foundation. Open access material. License: CC BY 3.0 Unported

Abstract

We introduce a shiny web application to facilitate the construction of Item Factor Analysis (a.k.a. Item Response Theory) models using the OpenMx package. The web application assists with importing data, outcome recoding, and model specification. However, the app does not conduct any analysis but, rather, generates an analysis script. Generated Rmarkdown output serves dual purposes: to analyze a data set and demonstrate good programming practices. The app can be used as a teaching tool or as a starting point for custom analysis scripts.