By listening to this episode of the Clevenovia UX Cast, you will get a better understanding of how many users are sufficient enough to run a usability test and obtaining reliable results.

References 

Nielsen, J., & Landauer, T. K. (1993). A mathematical model of the finding of usability problems. In Proceedings of the SIGCHI conference on Human factors in computing systems (pp.206-213). Amsterdam: ACM.

Lewis, J. R. (1994). Sample sizes for usability studies: Additional considerations. Human Factors, 36, 368-378.

Lewis, J. R. (1993). Problem discovery in usability studies: A model based on the binomial probability formula. In Proceedings of the Fifth International Conference on Human-Computer Interaction (pp. 666-671). Orlando, FL: Elsevier.

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Effective participant recruitment is vital to collecting reliable data during usability testing of digital products and services. Not only should test participants reflect the characteristics of the targeted users of the product or service, but they must also be likely to use it. Only then will their experiences and opinions yield reliable data for identifying meaningful improvements.

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F O L L O W  U S  0 N  T W I T T E R @clevenovia

In this episode, I talk about how some usability specialists are conducting Usability test like an interview. Listen to this episode and find out why most usability specialists are doing this...

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In this podcast, I talked about how to get the best out of a usability test, by ensuring you test reveal issues that are likely to be encountered by end-users in real-world use.  

I talked about a problematic aspect of a usability test when using the think-aloud protocol. I also highlighted the established guidelines recommended by Simon and Ericsson to avoid this problematic aspect of the think-aloud.

#usabilitytesting #uxui #uxresearch #usertesting #ux