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Steve Franconeri Profile picture
Steve Franconeri
@SteveFranconeri
Prof. at Northwestern, CognitiveSci of clear explanations + visualizations of data-based evidence, in education, business, & design
Oct 17, 2021 • 4 tweets • 3 min read
Data visualizations are not ‘seen’ in a glance – they require active exploration, across a series of visual filtering operations.

With @talboger + @SBMost, we show that these powerful filters can cause 93% of people to miss a *dinosaur* within the ignored data values. #ieeevis A scatterplot containing blue and green dots, but the green We gave people a tough visual task within the pattern of blue values, causing them to ignore the green values. 93% missed these ‘Jurassic Marks’ at 1s, and 61% still missed them at 2.5s.

Try the experiment, watch the 8-min talk, or read the paper here: datasaurus-vis.herokuapp.com