A Comparison of Item Parameter Estimates between Three- and Five-option MC Items

• In Event: Model Considerations

Abstract

This study aims to compare the estimates of item difficulty, item discrimination, and information functions between multiple-choice items comprising either three or five options, using data collected from a reading comprehension assessment. The findings suggested significant influence of option count on difficulty, discrimination, and information.

Authors

• Jiayi Deng, Human Resources Research Organization

• Yun Leng Wong

• Joseph DeWeese, University of Minnesota

• Seulbi Bailey Lee, Graduate Student

• Patrick Kennedy, UNIVERSITY OF OREGON

• Gina Biancarosa, University Of Oregon

• David Weiss, UNIVERSITY OF MINNESOTA

• Mark Davison, UNIVERSITY OF MINNESOTA