This study compared linear text-based and non-linear hypertext-based instruction in a handheld computer regarding effects on two different levels of knowledge (declarative and structural knowledge) and learner motivation. Forty four participants were randomly assigned to one of three experimental conditions: linear text, hierarchical hypertext,…

New members in the field of instructional systems design and technology (ISD&T), including new students in this field, can find lists of publications and organizations available for them to read and to join. However, they may also wish to know which of these publications and organizations are recommended by established professionals. The field of…

PDAs (Personal Digital Assistants) have been used widely in educational settings. In this study, the visual illustration of a scientific text (cognitive-interest illustration, emotional-interest illustration, or no illustration) was manipulated to investigate its impact on student interest in instructional materials, achievement, and time spent on…