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Aesthetic-usability effect 0:33
A 33-second explainer of Aesthetic-usability effect, narrated over the same demo you can try yourself.
Try the interactive Aesthetic-usability effect demo
What this video covers
The aesthetic-usability effect is our habit of judging better-looking things as easier to use - whether or not they actually are. Polish buys a benefit of the doubt, smoothing over small frictions and making people more forgiving.
You rated the polished version more usable, though it had the very same fields in the very same order as the plain one. That gap between how usable it felt and how usable it was is the effect - and it cuts both ways: a real boon for finished work, a quiet menace during testing.