When I taught research methods to undergraduates, I would start by asking whether anyone in the class had $20. Though harder to come by thanks to digital payment options, inevitably someone would produce a $20 bill. I would then ask whether they knew how the bill came to look the way it does. Students would take guesses ' often rooted in history and counterfeiting concerns. While valid, the larger font and picture designs that came about in the 1990s and early 2000s were also the result of research intended to make the bills more accessible for the 3.5 million Americans with low vision. One of those Americans with low vision was a researcher on the team designing the new bill, experimental psychologist Gordon Legge. These changes made it easier for those low-vision Americans, their families and others around the world to read and use American dollars. In other countries, bills and coins come in different sizes that pertain to their value, making them much easier for people with low...
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