在图表中量化和解释y轴扭曲效应的和比率
1School of Psychology, University of Ottawa.
Journal of experimental psychology. Learning, memory, and cognition
|February 18, 2025
概括
在条形图中改变y轴范围会扭曲感知到的差异. 截断y轴会夸大价值差异,而扩展则会减少价值差异,影响数据解释.
科学领域:
- 数据可视化数据可视化
- 认知心理学 认知心理学
- 信息设计是信息设计.
背景情况:
- 数据可视化在科学和公共传播中很普遍.
- Y轴范围操纵是扭曲图形感知的一种常见方法.
- 截断y轴 (从零以上开始) 可以膨胀条形图的感知差异.
研究的目的:
- 将""定义为用于解释条形图扭曲的感知信息.
- 调查上方y轴截断的存在和影响.
- 检查y轴截断和扩张对各种图形类型中感知差异的影响.
主要方法:
- 为了测试在不同图形类型上的y轴扭曲,进行了四项研究.
- 实验涉及操纵y轴范围 (切断和扩展) 和图形格式 (条形,点形,直线).
- 观察者对价值差异的判断被记录并与图形扭曲相关分析.
主要成果:
- 无论是下方和上方的y轴截断都会增加感知价值差异;截断的效果更大.
- 与标准尺度相比,Y轴扩张减少了感知价值差异.
- 条形图比点或线形图更容易受到y轴扭曲的偏差.
结论:
- Y轴扭曲显著影响可视化中数据的感知.
- 提出的""框架可以解释这些感知偏见.
- 了解这些影响对于准确的数据解释和在各种可视化类型中进行有效的沟通至关重要.
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