Lackmann Sergej, Léger Pierre-Majorique, Charland Patrick, Aubé Caroline, Talbot Jean
Tech3lab, HEC Montréal, Montréal, QC H3T 2A7, Canada.
Department of Teaching, UQAM, Montréal, QC H2L 2C4, Canada.
Brain Sci. 2021 Jan 20;11(2):128. doi: 10.3390/brainsci11020128.
Millions of students follow online classes which are delivered in video format. Several studies examine the impact of these video formats on engagement and learning using explicit measures and outline the need to also investigate the implicit cognitive and emotional states of online learners. Our study compared two video formats in terms of engagement (over time) and learning in a between-subject experiment. Engagement was operationalized using explicit and implicit neurophysiological measures. Twenty-six (26) subjects participated in the study and were randomly assigned to one of two conditions based on the video shown: infographic video or lecture capture. The infographic video showed animated graphics, images, and text. The lecture capture showed a professor, providing a lecture, filmed in a classroom setting. Results suggest that lecture capture triggers greater emotional engagement over a shorter period, whereas the infographic video maintains higher emotional and cognitive engagement over longer periods of time. Regarding student learning, the infographic video contributes to significantly improved performance in matters of difficult questions. Additionally, our results suggest a significant relationship between engagement and student performance. In general, the higher the engagement, the better the student performance, although, in the case of cognitive engagement, the link is quadratic (inverted U shaped)
数以百万计的学生参加以视频形式授课的在线课程。多项研究使用明确的测量方法考察了这些视频形式对参与度和学习的影响，并概述了还需要研究在线学习者的隐性认知和情感状态。我们的研究在一项被试间实验中，就参与度（随时间变化）和学习情况对两种视频形式进行了比较。参与度通过明确和隐性的神经生理学测量方法来操作化。26名受试者参与了该研究，并根据所展示的视频被随机分配到两种条件之一：信息图视频或课堂录像。信息图视频展示了动画图形、图像和文本。课堂录像展示了一位教授在教室环境中授课的画面。结果表明，课堂录像在较短时间内引发了更高的情感参与度，而信息图视频在较长时间内保持了更高的情感和认知参与度。在学生学习方面，信息图视频在难题方面显著提高了成绩。此外，我们的结果表明参与度与学生成绩之间存在显著关系。一般来说，参与度越高，学生成绩越好，不过，在认知参与度方面，这种联系是二次曲线的（倒U形）
