How Reliable Are Self-Reported Task Completion Rates?

Did you do that task correctly? Unmoderated testing provides many benefits. The most notable of which is the ability to collect metrics from a large and geographically diverse sample of participants quickly. A common metric collected in usability tests is the task completion rate. It’s often called the fundamental usability metric because if users can’t complete

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Can We Trust Data From Professional Usability Test-Takers?

There has been a bit of an explosion in remote usability testing tools of late. Some of these companies also offer to recruit and provide you with users who are paid to take your usability test (Usertesting.com, Feedback Army and EasyUsability to name a few). These services allow for quick (almost immediate) feedback from users.

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Margins of Error in Usability Tests

How many users will complete the task and how long will it take them? If you need to benchmark an interface, then a summative usability test is one way to answer these questions. Summative tests are the gold-standard for usability measurement. But just how precise are the metrics? Just as a presidential poll uses a

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