Instructor enthusiasm in online lectures: how vocal enthusiasm impacts student engagement, learning, and memory

Across two studies we investigated the impact of instructor enthusiasm on student attentional engagement during an online undergraduate lecture, as well as their memory for lecture content and their motivation to watch additional lecture videos on the same topic (Study 2 only). In both studies participants were randomly assigned to watch a 22-min lecture, delivered with either high or low vocal enthusiasm by the instructor. Subjective ratings …