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The problem is that we'd like to ask a lot more interview style questions beforehand to inform the development of our user personas however this is starting to feel like a different exercise and I'm wondering wether it's a good idea to combine design research and usability testing in the same session? It's not uncommon to ask the user pre and ...


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I'll answer this question in a different way - what things don't most companies have or do when they want to properly test web application for accessibility: A design strategy or framework that is not just about accessibility, but inclusive design (this is another topic/question altogether). A range of actual devices (not just simulations or emulators) to ...


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In the past, I've had my project manager conduct usability tests with users (who represent the target audience). The PM is familiar enough with the project to know how it works and is able to guide other people through the process of using the site/product, but also removed enough from it to stay objective - because they haven't been as deeply involved as a ...


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My question is this: How much margin, if any, should I allow for and where in the calculation should I add it? An error bar makes no sense for individual SUS scores. Presenting grouped average scores then displaying a standard deviation for each group would be sensible. If you're worried about the audience for the results reading too much into small ...


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Go for it. Guerilla testing is all about rapid iterative prototyping. It's part of the creative design process, and not a quantitative scientific endeavour. Apart from the obvious advantage, of reducing risk of critical errors, Pros include Being able to defend your design decision with stakeholders (less chance of design by committee) Learning more ...


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There is always a risk of being misled by the spurious behavior of a single person who may perform certain actions by accident or in an unrepresentative manner. Why You Only Need to Test with 5 Users The accidental action taken by single user could be positive or negative, so your iteration could be for better or for worse. With two users (as with the ...


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Your net is too wide An internet average would be totally useless. That's like asking how your income compares to the global average. That wouldn't give you much insight into your quality of life in San Francisco, for instance. Analyze the competition What you want is a reference against a competitive set or some other target set. The type of business or ...


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As you've asked for an article by a usability authority, I would like to quote a couple of paragraphs found in Handbook of Human-Computer Interaction: Color Emphasis Color emphasis suggests using strong contrast in value and chroma to focus the operator's attention on critical information. High chroma red alerts seem to aid faster response than ...



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