Perception of bar graphs – A biased impression?

作者：

Highlights：

• Bar graphs can give a biased impression of the central tendency.

• The mean appeared lower than it actually was in bar graphs compared to point graphs.

• The height of the bars had no effect on the underestimation.

• The estimated mean was biased towards the outliers, but still underestimated.

摘要

•Bar graphs can give a biased impression of the central tendency.•The mean appeared lower than it actually was in bar graphs compared to point graphs.•The height of the bars had no effect on the underestimation.•The estimated mean was biased towards the outliers, but still underestimated.

论文关键词：Bar graphs,Data graphs,Biased perception

论文评审过程：Received 9 July 2015, Revised 15 January 2016, Accepted 27 January 2016, Available online 6 February 2016, Version of Record 6 February 2016.

论文官网地址：https://doi.org/10.1016/j.chb.2016.01.036