WSC progress not regress

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Last updated 11:24 AM on 4/11/26
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Brad A. Myers

Computer science student who presented a paper on percentage-done progress indicators in 1985

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Placebo buttons

Buttons that do t work and are only there to comfort you

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Misconception of placebo buttons

Buttons placed around you to do your bidding

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‘The New Yorker’ newspaper article in 2008

Elevator buttons don’t close many elevators built in the United States since the 1990s

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Study done by Brad A. Myers

He asked 48 students to run searches on a computer database with and without a progress bar for guidance. 84% preferred the progress bar and didn’t mind the inaccuracy.

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Why was study on progress bars done my Brad A. Myers was proven and successful?

Due to the placebo effect

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