Jakob Nielsen personal blog
Why You Only Need to Test with 5 Users
Elaborate usability tests are a waste of resources. The best results come from testing no more than 5 users and running as many small tests as you can afford.
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Linked from 13 Hacker News comments by 11 different people, from Jul 2007 to Feb 2012.
Most recent:
- lovskogen · Feb 20, 2012
- kemayo · Apr 15, 2011
- telemachos · Jul 4, 2010
- dsteinweg · Jun 16, 2010
- tokenadult · May 26, 2010
- tokenadult · May 26, 2010