Congress Website http://www.epod2014.hacettepe.edu.tr/
The congress abstracts booklet can be found here.
The file relating to the presentation of invited speakers at the congress can be accessed by the following links.
Prof. Terry Ackerman: Differential Item Functioning from a Compensatory-Noncompensatory Perspective
Prof. Cindy Walker: The Relationship Between Dimensionality and Differential Item Functioning