Designing structured hypertext and structuring access to hypertext
Educational Technology - Hypermedia
Problems and issues in designing hypertext/hypermedia for learning
Designing hypermedia for learning
E-Learning: Strategies for Delivering Knowledge in the Digital Age
E-Learning: Strategies for Delivering Knowledge in the Digital Age
Recommendation System based on user interaction data applied to intelligent electronic books
Computers in Human Behavior
Improving the Usability of E-Book Readers
Journal of Usability Studies
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College students had 30min to study a 17-frame online lesson on distance learning that included navigational aids (for showing the learner's location in the lesson), signaling aids (for highlighting the important content), both aids, or no aids. On a 30-item usability survey consisting of 8 usability scales, students who received navigational aids produced significantly higher mean ratings on each of the 8 usability scales-ease of use, satisfaction of use, awareness of lesson structure, awareness of lesson length, awareness of location, ease of navigation, lesson comprehension, and lesson learning-with effect sizes ranging from d=0.50 to d=1.35. Students who received signaling aids produced significantly higher ratings on 4 of the 8 usability scales-ease of use, satisfaction of use, lesson comprehension, and lesson learning with effect sizes ranging from d=0.39 to d=2.15. Results help to clarify the mechanism underlying previous findings showing that students learned more from e-lessons that contained navigational aids. In the present study, there was a significant positive correlation between usability rating and recall test score for 5 of the 8 usability scales (particularly for ease of use), indicating partial support for the prediction that learners' satisfaction with an e-learning system is related to their learning outcome. Results support the predictions of the emotional design hypothesis and have implications for the design of e-learning interfaces.