A Parametric Procedure for Detecting Non-Uniform Drift in Equating Items

• In Event: AERA Poster Session 6
  In Poster Session: Division D Section 1 Poster Session 2

Abstract

The occurrence of substantial changes in item response models over time is a fundamental concern for equating items. Recent research has developed a new parametric procedure for detecting difficulty changes in equating items. We propose an extension of this parametric procedure for detecting changes in both discrimination and difficulty.

Authors

• Seong eun Hong, University of Massachusetts - Amherst

• Xi Wang, Cognia

• Louis A. Roussos, Cognia