Abstract
When it comes to presenting research results, the usual approach is to use PowerPoint or similar slide applications, or to opt for alternative presentation tools. A central question is how well the knowledge is transferred and to what extent the target audience is addressed emotionally. Based on a 2*2 factorial design, the effects of presentation form (PowerPoint slide presentation vs. explainer video) and interaction (no interaction vs. interaction by means of additional questions on the topic) were investigated. Overall, the presentation factor is more important for learning success than the interaction factor and explainer videos perform significantly better than the PowerPoint presentation. This applies to the objective and subjective learning success, but also to the emotional appeal and the increase in engagement, interest and other cognitive activities. The effects of the interaction factor are relatively low, achieving minor improvements in combination with the PowerPoint presentation, while no statistically significant and relevant effects were found in combination with the explainer video.
Highlights
In a world with an overabundance of information sources, contradictory statements and increasing complexity, the efficiency of knowledge transfer is a key challenge
The presentation factor is more important for learning success than the interaction factor and explainer videos perform significantly better than the PowerPoint presentation
One explanation is that in the case of the explainer video, the test subjects accept the timing of the video shown, whereas in the case of the slide presentation, the timing/pacing is perceived flexible
Summary
In a world with an overabundance of information sources, contradictory statements and increasing complexity, the efficiency of knowledge transfer is a key challenge. It is more likely that PowerPoint is judged to be virtually indispensable in everyday work In this context, Gabrielle (2010) highlights, “PowerPoint is more than a visual aid for presenters, it has become one of the business leaders most important tools for winning in the idea market place (competition for attention, budget and headcount by selling ideas). The format approach of simpleshow explainer videos is to summarize information and improve the learning outcome using empathetic storytelling and a finely tuned interplay of sound and image This makes this charming and engaging format a perfect key element for an online course. The goal is to analyze the effectiveness (learning effect) and efficiency (ratio learning effect per time of consumed video) of the explainer video as a format to improve the knowledge base of the user in comparison with a PowerPoint presentation and to investigate moderating effects of interactive elements while presenting study results
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