Supplementary material for "Teaching multimodal interaction in cars to first-time users"

This study explores three variations of a proactive method to teach multimodal gaze and gesture interactions to first-time users in the scenario of an SAE level 5 automated vehicle. The three variations differed in size, placement on the screen, and whether active user input was required to receive additional information. The results of a user study involving the gesture control prototype in a driving simulator (N=30) show that the greatest variation was more effective in teaching, caused by significant differences in visibility ratings (p