From the latest issue of the Journal of Educational Technology and Society: this article begins from the perspective that "exploratory learning approach is often the preference when it comes to development of computer-based learning environments" and then proceeds to examine how a dynamic decision network can supply the intelligence needed by such a system to foster interactions and other behaviours. Such systems are able to assess mastery, as demonstrated by comparisons with test results. "One of the aims of the proposed methodological approach was to provide a mechanism to explicitly visualize the evolving mastery level as the learners interact with a particular computer based learning environment." If we view mastery as a complex phenomenon, and not a simple (and testable) on-off phenomenon, then approaches like the one described in this paper will offer better, and more fine-grained, performance assessments.
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