From the course: UX Insights Weekly

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How to build strong user data over time

How to build strong user data over time

From the course: UX Insights Weekly

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How to build strong user data over time

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- [Instructor] Different kinds of research need different numbers of participants. Fielding a survey may require several hundred responses. Performing online AB testing may required several thousand, so it's often surprising to the people we work with that usability studies only typically use around eight participants. The reason is that rather than trying to reach some kind of statistical validity, usability studies are simply looking for patterns of behavior. We recruit highly specific individuals for the studies, so we don't have to control for the randomness and noise you see in survey participants. We aren't necessarily trying to quantitatively define how much of an effect there is, just whether it occurs or not. Rather than trying to be predictive of how people will behave in the future, individual usability studies are normally descriptive of how well the current version of the product works right now and where any…

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