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The myth of 7 +/- 2

Periodically, we hear about the rule of 7 +/- 2 from inexperienced interaction designers: Users can't handle more than 7 bullets on a page, seven items in a form list, or more than seven links in a menu. According to James Kalback, this has no evidence in reality on the contrary. The psychologist George Miller's conclusions apply to what we can memorize not what we can perceive.

Current research strongly supports that broad structures perform better than deep structures. Users can more easily cope with broad structures, they have a greater chance of getting lost in deep hierarchical structures, and new visitors are able to get a better overview of sites offerings from a broader structure.

Links:

  • The Myth of Seven, Plus or Minus 2

Henrik Olsen - June 23, 2003

See also: Research (88)  Information architecture (10)  Links (10)  Navigation (44) 

 

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