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...
Main Authors: | , |
---|---|
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 |