Applying the segmenting principle to online geography slideshow lessons

Applying the segmenting principle to online geography slideshow lessons
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将分段原则应用于在线地理幻灯片课程

DOI:
10.1007/s11423-017-9554-x
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发表时间:
2018
期刊:
Educational Technology Research and Development
影响因子:
--
通讯作者:
Hanna, Sara
Hanna, Sara
中科院分区:
--
文献类型:
--
作者:
Mayer, Richard E.;Howarth, Jeffrey T.;Kaplan, Michelle;Hanna, Sara

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本研究将多媒体设计原则应用于地理资讯系统(GIS)的线上地理幻灯片,供选修入门课程的大学生使用。在2(分段vs.非分段)× 2(冗余vs.非冗余)主题间设计中,基础课程(非分段条件)提供了一个如何解决扩展GIS问题的工作示例,包括12张幻灯片,每张幻灯片左侧显示图形,右侧显示相应的文本。学生们通过按下右箭头键移动到下一张幻灯片来完成课程。分段课程(分段条件)由相同的幻灯片组成,但每张幻灯片上的材料是顺序呈现的,其中按下右箭头键会添加单个图形和/或相应的文本,解释3或4个主要步骤中的每一个。对于这两个版本,一些学生收到与印刷文本相同的额外叙述(冗余条件)或没有额外叙述(非冗余条件)。在随后的迁移测试中,结果显示分词效果,分词版本的学生比非分词版本的学生表现得明显更好(d= 0.34),无论是否添加叙述,这种模式都是相同的,分词和冗余之间没有相互作用,冗余也没有显著影响。这项工作将分割原则扩展到新的介质、领域和片段大小。
Multimedia design principles were applied to an online geography slideshow on geographic information systems (GIS) intended for college students taking an introductory course. In a 2 (segment vs. non-segmented) × 2 (redundant vs. non-redundant) between-subjects design, the base lesson (non-segmented condition) provided a worked example of how to solve an extended GIS problem, consisting of 12 slides with each showing graphics on the left side with corresponding text in the right side. Students progressed through the lesson by pressing the right arrow key to move to the next slide. The segmented lesson (segmented condition) consisted of the same slides, but the material on each slide was presented sequentially in which pressing the right arrow key added a single graphic and/or corresponding text explaining each of 3 or 4 major steps. For both versions, some students received additional narration that was identical to the printed text (redundant condition) or no additional narration (non-redundant condition). On a subsequent transfer test, the results showed asegmenting effectin which students performed significantly better with segmented than non-segmented versions of the lesson (d= 0.34), and this pattern was the same whether narration was added or not, yielding no interaction between segmenting and redundancy and no significant effect for redundancy. This work extends the segmenting principle to a new medium, domain, and segment size.
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