What makes an item more difficult? Effects of modality and type of visual information in a computer-based assessment of scientific inquiry abilities

Hsin-Kai Wu, Che-Yu Kuo, Tsung-Hau Jen, Ying-Shao Hsu. What makes an item more difficult? Effects of modality and type of visual information in a computer-based assessment of scientific inquiry abilities. Computers & Education, 85:35-48, 2015. [doi]

Abstract

Abstract is missing.