A Fused SDT/IRT Model for Multiple-Choice and Open-Ended Items

• In Event: Item Response Theory

Abstract

Exams often consist of different types of items, such as multiple-choice and open-ended items, which raises questions about which of a variety of item response theory (IRT) models should be used. The present study shows practical advantages of a choice model based on signal detection theory.

Author

• Lawrence T. DeCarlo, TEACHERS COLLEGE, COLUMBIA UNI