Navigation support in complex open learner models: assessing visual design alternatives
Navigation support in complex open learner models: assessing visual design alternatives
复制标题
复杂开放学习者模型中的导航支持：评估视觉设计替代方案
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Peter Brusilovsky
中科院分区：
文献类型：
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作者：
Julio Guerra;C. Schunn;S. Bull;Jordan Barria;Peter Brusilovsky
摘要开放式学习者模型被用于现代网络学习中，向系统用户展示其学习者模型的内容。众所周知，这种方法可以促进思考，促进规划和导航。开放式学习者模型可以显示底层学习者模型的不同细节级别，并且可以以不同的方式构建信息。然而，在有用的信息和信息的复杂性之间存在权衡。本文探讨了提供更丰富的信息是否会得到学习者的积极评价，从而对学习任务产生更有效的支持。一个采访前的研究揭示了复杂的学习者模型中的信息是感兴趣的。一个受控的用户研究检查了六种不同复杂性的可视化原型，并导致其中一种设计的实施。第二个对照研究涉及学生互动的可视化的变化，同时寻找合适的学习材料，并揭示了设计的替代方案及其变化的价值。这项工作有助于开发复杂的开放式学习者模型，强调需要平衡的复杂性和支持。它还表明，开放式学习器模型的表现力可以通过视觉元素来提高，这些视觉元素战略性地总结了详细显示的复杂信息。
ABSTRACT Open Learner Models are used in modern e-learning to show system users the content of their learner models. This approach is known to prompt reflection, facilitate planning and navigation. Open Learner Models may show different levels of detail of the underlying learner model, and may structure the information differently. However, a trade-off exists between useful information and the complexity of the information. This paper investigates whether offering richer information is assessed positively by learners and results in more effective support for learning tasks. An interview pre-study revealed which information within the complex learner model is of interest. A controlled user study examined six alternative visualisation prototypes of varying complexity and resulted in the implementation of one of the designs. A second controlled study involved students interacting with variations of the visualisation while searching for suitable learning material, and revealed the value of the design alternative and its variations. The work contributes to developing complex open learner models by stressing the need to balance complexity and support. It also suggests that the expressiveness of open learner models can be improved with visual elements that strategically summarise the complex information being displayed in detail.