Card Sorting: How Many Users to Test

[email protected] (Jakob Nielsen) Mon, 19 Jul 2004 09:00:00 -0700

Newsgroups	gmane.comp.web.alertbox
Message-ID	<SPARKLIST-7313542-3125866-2004.07.19-09.00.02--gcwa-alertbox#[email protected]>

Jakob Nielsen's Alertbox for July 19 is now online at:
   http://www.useit.com/alertbox/20040719.html

Summary:
Testing ever-more users in card sorting has diminishing returns,
but you should still use three times more participants than
you would in traditional usability tests.

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