Graphical Perception: Theory, Experimentation, and Application to the Development of Graphical Methods – William S. Cleveland and Robert McGill
How accurately people perceive core visual encodings? Ranked top to bottom.
position along a common scale
position on identical but nonaligned scales
length
angle & slope (tie)
area
volume , density, and color saturation (tie)
color hue
Updated: February 2021.
Created: February 2021.
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