Lies, Damn Lies, and Charts?
Over at Nautilus , Becca Cudmore is puzzled by how the same information can be displayed on charts with two entirely different attitudes, or spin. According to Ruth Rosenholtz, a scientist over at MIT, the way you can tell if a chart is trying to deceive you is by how long it takes you to figure out what that visual is trying to say. "A bad chart requires more cognitive processes and more reasoning about what you’ve seen." Since you are often required to use visuals, including graphs and charts, let's take a look at a couple of Nautilus's examples of what you should NOT do. Puzzling Perspective - The purple chart is about "labor." It is displaying the same information, so why do these charts look so different? The pie chart on the right puts labor up front and closer to you, so it takes up more space. The chart at left puts the labor information farther away from you, so it takes less space (think vanishing point perspective). In other words, mak...