  Many XR devices use bare-hand gestures to reduce the need for handheld
controllers. Such gestures, however, lead to false positive and false negative
recognition errors, which detract from the user experience. While mediation
techniques enable users to overcome recognition errors by clarifying their
intentions via UI elements, little research has explored how mediation
techniques should be designed in XR and how a user's task and context may
impact their design preferences. This research presents empirical studies about
the impact of user perceived error costs on users' preferences for three
mediation technique designs, under different simulated scenarios that were
inspired by real-life tasks. Based on a large-scale crowd-sourced survey and an
immersive VR-based user study, our results suggest that the varying contexts
within each task type can impact users' perceived error costs, leading to
different preferred mediation techniques. We further discuss the study
implications of these results on future XR interaction design.

Human-Computer Interaction