Modeling Students' Response Time in a Content-Constrained Online Adaptive Testing: Fixed Versus Variable Length

• In Event: Item Response Theory With Complex Data

Abstract

Response Time (RT) is defined as the amount of time that takes a person to respond to an item. It has become an important process type of data in educational assessment. RT often provides insights about a student’s testing process, solution strategy, and cognitive demands of items. The objective of the paper is to incorporate RT into an item selection algorithm for a content constrained Computerized Adaptive Testing (CAT). Our initial simulation results indicate that the proposed RT weighted constrain-control method is superior to the traditional content constraint item selections. It improves estimation efficiency and item bank management for both fix-length CAT and variable-length CAT. More simulation results will be added by March 2021.

Authors

• Tong Wu, Indiana University - Purdue University

• Hua-Hua Chang, Purdue University