Studied 69 undergraduates who used conceptually-indexed hypertext learning environments with differently structured thematic criss-crossing (TCC) treatments: guided and learner selected. Found that students need explicit modeling and scaffolding support to learn complex knowledge from these learning environments, and considers implications for…

Describes a study that explored the acquisition and transfer of complex knowledge after using a conceptually-indexed hypertext learning environment based on cognitive theory and research. Results found evidence that a hypertext learning environment with conceptually-indexed case-based materials and modeling/scaffolding support can help…

Discusses research issues related to using cognitive learning and instructional theory to design technology-based learning environments such as hypertext and hypermedia. A "Theory-to-Design" framework is described, and the framework is then used to analyze theoretical and design issues raised in a hypermedia research project. (Contains…