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This paper explores the application of Learning Styles Adaptation Language (LAG-XLS) within the context of Adaptive Hypermedia Architecture (AHA!). It addresses the "authoring problem" by defining content alternatives, creating adaptation techniques, and designing user interaction mechanisms. The study evaluates user understanding of strategies, presentation satisfaction, and the effectiveness of adaptive strategies. Key findings reveal useful applications of learning styles in adaptive systems, highlight the gap between theory and practice in learning style identification, and stress the importance of psychological insights in course design.
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Empirical Evaluation of Learning Styles Adaptation Language Natalia Stash Alexandra Cristea Paul De Bra A3H June 20, 2006
Contents • Motivation • Application of learning styles adaptation language (LAG-XLS) in AHA! (Adaptive Hypermedia Architecture) • Experimental Assignment • Conclusions
“Authoring problem” Defining:- content alternatives & multiple paths through the content - adaptation techniques - whole user-interaction mechanism design Motivation 1 Alleviating “Authoring problem”Improving reuse capabilities:(reuse of previously created material & other components)reuse of static & dynamic parts of the courseware Our solutionReuse of dynamics based on LS example:Adaptation language LAG-XLS (read as “LAG-excels”)
Evaluation of LAG-XLS:- understanding strategies creation and application- satisfaction with the presentation- ability to express variety of strategies Motivation2
Contents • Motivation • Application of learning styles adaptation language (LAG-XLS) in AHA! (Adaptive Hypermedia Architecture) • Experimental Assignment • Conclusions
Types of Adaptive Strategies in LAG-XLS • Instructional strategies - selection of media items - sorting information items - providing different navigation paths (breadth-first vs. depth-first) • Instructional meta-strategies – inference or monitoring strategies. Preferences for: - certain types of information (eg. text vs. image) - reading order (eg. breadth-first vs. depth-first)
Contents • Motivation • Application of learning styles adaptation language (LAG-XLS) in AHA! (Adaptive Hypermedia Architecture) • Experimental Assignment • Conclusions
Experimental Assignment • AHA! installation • Involvement as: - authors (using Graph Author tool, working with given applications & predefined strategies) - end-users (strategies visualization in given applications) • Comparison of stated preferences and preferences induced by the system with Felder-Soloman ILS questionnaire results • Modifying the existing strategies or creating new strategies • Comments
Comparison: own stated preferences and ILS questionnaire results (in %)
System induced preference the same as questionnaire result? (%)
Contents • Motivation • Application of learning styles adaptation language (LAG-XLS) in AHA! (Adaptive Hypermedia Architecture) • Experimental Assignment • Conclusions
Conclusion 1 • Students considered application of LS in AH a useful endeavor • Theory and praxis do not always match in LS identification • Students understood strategies application in AHA! quite well and were satisfied with the presentations • However the students did not create any new strategies
Conclusion 2 • Creation of a course that supports LS requires a lot of psychological knowledge • Creation of ready to use strategies can be useful • Experiments with LS specialists are necessary