This visualisation shows the proportion of time participants spent looking at 2D and 3D visualisations.
The aim is to determine a metric for "usefulness" of the visualisations they created, i.e. if they actually visually analysed the visualisations for an extended period of time.
This visualisation only exists for Part B.
This visualisation backs up findings in other visualisations that participants overall created and used more 3D visualisations than 2D visualisations. However, we omit discussion about this plot for two main reasons:
Time spent looking at a visualisation could either mean actively using it to work, or simply being confused by it and requiring more time to identify insights
Due to the lack of eye-trackers during the study, we use the "gaze" direction of the participant's headset to perform a raycast and determine which object it intersects with, potentially causing inaccuracies when this gaze does not align with participants' actual attention
However, we opt to include it in this supplemental material for posterity and completeness.
Based on LookingAtData.
We perform some quick data wrangling into the proper format required to plot it using ggplot2 (shown on this page):