Graduate Studies, UNL
Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–
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First Advisor
Susan VanderPlas
Degree Name
Doctor of Philosophy (Ph.D.)
Committee Members
Dan Novy, Erin Blankenship, Réka Howard
Department
Statistics
Date of this Version
5-4-2026
Document Type
Dissertation
Citation
A dissertation presented to the faculty of the Graduate College at the University of Nebraska in partial fulfillment of requirements for the degree Doctor of Philosophy
Major: Statistics
Under the supervision of Professor Susan VanderPlas
Lincoln, Nebraska, May 2026
Abstract
Data visualizations are powerful tools for communicating complex data structures. They are typically presented in 2-dimensional formats, such as on paper or computer screens. In recent years, technological advancements have enabled traditional data visualizations to be fully rendered in physical environments through 3D printing, offering more natural interactions. However, this style of graphical rendering remains largely unexplored in empirical evaluations with traditional charts. In this research, we conducted two experiments to assess ratio estimations across 2D and 3D charts in digital and physical environments. The first study partially replicated Cleveland and McGill’s (1984) work in perceptual tasks and expanded to incorporate 2D, digitally interactive 3D, and 3D-printed bar charts. For each chart, participants were asked to identify which of the two marked bars was smaller and to estimate the ratio of the smaller bar to the larger. Our results did not suggest that accuracy in ratio estimation differed across chart types. The second study evaluated 2D and 3D heat maps using a similar design, where the third dimension meaningfully communicated a variable within a dataset. In this study, we used 2D, digitally interactive 3D, and 3D-printed heat maps. Participants completed the same comparison and estimation tasks. Our results suggested that 3D heat maps provide more accurate ratio estimations than 2D heat maps, although no differences were detected in accuracy between the digital 3D heat maps and physical 3D heat maps. Lastly, we incorporated both studies as experiential learning projects for multiple sections of an introductory statistics course, where students completed a series of reflections from the viewpoints of participants and consumers of scientific knowledge. Collectively, the studies conducted in this research provide some of the first empirical evidence on 3D-printed statistical graphics and their potential role in data communication.
Recommended Citation
Wiederich, Tyler, "Perception of 3D Data Visualizations" (2026). Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–. 486.
https://digitalcommons.unl.edu/dissunl/486
Comments
Copyright 2026, Tyler Wiederich. Used by permission