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Re:Ranking Visualizations of Correlation Using Weber’s Law [... by xangg on Monday October 10, 2016 @01:57PM (#12678712)
One thing they did right with this study and paper was to make the data public, which allowed a better analysis to be published the following year. See https://idl.cs.washington.edu/files/2015-BeyondWebersLaw-Inf...
Re:Ranking Visualizations of Correlation Using Weber’s Law [... by mturmon on Monday October 10, 2016 @04:31PM (#12679593)
Thanks, your link is a superior study. The OP is really not very good in the problems it considers. Bottom line of either study seems to be:

"We can give a clear recommendation for designers in the vast majority of circumstances: use scatterplots to visualize bivariate correlation"