Class evaluation using IoT skin conductance measuring instruments

Abstract

We measured the skin conductance and subjective scales of 48 college students during classes involving conventional lectures, in-class experiments, and discussions. During a lecture, we provided an overview of skin conductance. The in-class experiment consisted of a toy-gun shooting game. The in-class discussion consisted of the social application of psychophysiological measurements. Results indicated that the skin conductance of participants gradually decreased as the lecture progressed, but became remarkably high during the discussion. The subjective assessment of the class by students was generally positive, except for the lecture. The psychophysiological and subjective scale responses of the students were correlated only during in-class experiment, but the correlation was lost during the lecture and the discussion, possibly because of difficulties in the awareness of the level of physiological arousal and the anxiety caused by the interpersonal situation, respectively. The possibilities and problems of applying multi-person measurements of psychophysiological activities in educational settings are discussed.