  Recent research on information visualization has shown how individual
differences act as a mediator on how users interact with visualization systems.
We focus our exploratory study on whether personality has an effect on user
preferences regarding idioms used for hierarchy, evolution over time, and
comparison contexts. Specifically, we leverage all personality variables from
the Five-Factor Model and the three dimensions from Locus of Control (LoC) with
correlation and clustering approaches. The correlation-based method suggested
that Neuroticism, Openness to Experience, Agreeableness, several facets from
each trait, and the External dimensions from LoC mediate how much individuals
prefer certain idioms. In addition, our results from the cluster-based analysis
showed that Neuroticism, Extraversion, Conscientiousness, and all dimensions
from LoC have an effect on preferences for idioms in hierarchy and evolution
contexts. Our results support the incorporation of in-depth personality
synergies with InfoVis into the design pipeline of visualization systems.
