10 Useful Usability Findings and Guidelines « Smashing Magazine

Published on: 2009-09-24 10:50:28 • 1 min read

Effective User Testing Doesn't Have To Be Extensive

Jakob Nielsen's study on the ideal number of test subjects in usability tests found that tests with just five users would reveal about 85% of all problems with your website, whereas 15 users would find pretty much all problems.