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arXiv · 2310.15406

Visual Elements and Cognitive Biases Influence Interpretations of Trends in Scatter Plots

Abstract

Visualizations are common methods to convey information but also increasingly used to spread misinformation. It is therefore important to understand the factors people use to interpret visualizations. In this paper, we focus on factors that influence interpretations of scatter plots, investigating the extent to which common visual aspects of scatter plots (outliers and trend lines) and cognitive biases (people's beliefs) influence perception of correlation trends. We highlight three main findings: outliers skew trend perception but exert less influence than other points; trend lines make trends seem stronger but also mitigate the influence of some outliers; and people's beliefs have a small influence on perceptions of weak, but not strong correlations. From these results we derive guidelines for adjusting visual elements to mitigate the influence of factors that distort interpretations of scatter plots. We explore how these guidelines may generalize to other visualization types and make recommendations for future studies.

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Alexandre Filipowicz, Scott Carter, Nayeli Bravo, Rumen Iliev, Shabnam Hakimi, David Ayman Shamma, Kent Lyons, Candice Hogan, Charlene Wu. 2023-10-23. Visual Elements and Cognitive Biases Influence Interpretations of Trends in Scatter Plots. https://arxiv.org/abs/2310.15406

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