Usability Quote of the Day

May 23, 2012

There's something very odd going on here. If designers made completely unrealistic assumptions about the physical world when designing technology, then we would blame them (and likely sue them) for technical incompetence. Yet when they make grossly unrealistic assumptions about human nature... we don't blame the designers, we blame the unfortunate people who are just trying to do what the design requires. -- Kim Vicente, The Human Factor, p. 45.    (via interaction-design.org)

Thursday, June 30, 2005

Survey Response Rates? 2% is not Good Enough

Good discussion of survey sampling problems ...

"In the 1950s, a well-designed survey could often achieve over 90% response rates. Since then, response rates have consistently declined.

But I was still a bit shocked the other day when a post on a usability discussion group quoted a ‘typical response rate of 2%’ as if that were something we all knew as a fact.

THE STATS ARE A PROBLEM - 2% is a terrible response rate. Why? Because there’s such a big chance that the people who filled in the survey are different from the people who didn’t.

With any survey, you need to look at the profile of the people who responded and satisfy yourself that they are about the same as the people who didn’t respond – and also, that they’re about the same as the overall population that you’re sampling."   continued ...   (Via Usability News)

Survey - User Interface Design, Human Computer Interaction (HCI), Ergonomics

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