deltaPlotR: An R Package for Di?erential Item Functioning Analysis with Ango? s Delta Plot

Angoff's delta plot is a straightforward and not computationally intensive method to identify differential item functioning (DIF) among dichotomously scored items. This approach was recently improved by proposing an optimal threshold selection and by considering several item purification proces...

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Bibliographic Details
Main Authors: David Magis, Bruno Facon
Format: Article
Language:English
Published: Foundation for Open Access Statistics 2014-08-01
Series:Journal of Statistical Software
Online Access:http://www.jstatsoft.org/index.php/jss/article/view/2172