Comparing the Performances of Anchor Item Replacement Procedures

• In Event: GSIC Poster Session II

Abstract

Drifted anchor item parameters can negatively affect equating processes. Replacement offers a potential solution. We assessed two replacement procedures — only b-parameter and b-parameter + content — utilizing real ABIM datasets. Results show effectiveness in maintaining psychometric quality; however, careful consideration is needed to maintain the mini-test property of anchor item sets.

Authors

• Cihan Demir, WASHINGTON STATE UNIVERSITY

• Matthew Swain, American Board of Internal Medicine