Summary:The answer is 5, except when it’s not. Most arguments for using more test participants are wrong, but some tests should be bigger and some smaller.
via How Many Test Users in a Usability Study? Jakob Nielsen’s Alertbox.
Summary:The answer is 5, except when it’s not. Most arguments for using more test participants are wrong, but some tests should be bigger and some smaller.
via How Many Test Users in a Usability Study? Jakob Nielsen’s Alertbox.