Jeeheon Ryu

Ecological Analysis of the Classroom Teaching with Tablet PC Based Digital Textbook

The Impact of Classroom Environment and Gender Gap of Digital Textbook for Mathematics of Elementary School on Achievement and Media Perception

The Interaction Effect of Instructional Efficiency and Line Length in Comprehension of Picture and Text

The Effect of Contiguity Principle on the Cognitive Load Factors in Different Line Lengths and Types of Task

Eye-tracking Study of Types of Tasks, Line Length, and Contiguity in Comprehension of Text and Illustration

The Impact of Picture Segmentation and Navigational Structure of e-Book for SmartPad on Cognitive Load

The Interaction Effect of Measuring Stage and Cognitive Efficiency

Attentional Guidance of Visual Cueing and Levels of Realism of Pedagogical Agent on Cognitive Load Factors and Achievement

The Effects of Types of Task and Screen Design on Cognitive Load factors of Perceived Task Difficilties and Mental Efforts

The Effects of Prior-knowledge and Screen Split on Task Performance and Cognitive Load Factors