Don't Report Numbers from Small UX Studies

Summary:Testing a small number of participants gives qualitative insights, which are great. But if 4 out of 5 test users do something, don't conclude that 80% of all users will do the same.

Video Author

Raluca Budiuis Director of Research at Nielsen Norman Group, where she consults for clients from a variety of industries and presents tutorials on mobile usability, designing interfaces for multiple devices, quantitative usability methods, cognitive psychology for designers, and principles of human-computer interaction. She also serves as editor for the articles published on Raluca coauthored the NN/g reports on tablet usability, mobile usability, iPad usability, and the usability of children's websites, as well as the book Mobile Usability.She holds a Ph.D. from Carnegie Mellon University.

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