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I'm planning a "User Testing" and one of the tasks is the 5 (or 8) second test, so I want to know which fits better in my interface.

I can't remember what article talks about the difference between 5-second test and 8-second test, can someone remember it?

Or, if someone knows the differences, please share it with me! :D

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up vote 9 down vote accepted

Here's an article about the 5-second usability test:

The 8-second test is an extension of the 5-second test that starts after a user finds the page through a search engine link. It's described in Chapter 9 of When Search Meets Usability, by Shari Thurow and Nick Musica.

By the way, register at and you can conduct a 5 second test for free (if you join the community) or instead you can pay for it as well.

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hey! you are right!! i saw that in that book! Thank you so much Roland! – David Lalo Matus Jan 29 '11 at 4:12
Your Welcome! :) – Roland Pokornyik Mar 10 '11 at 10:39

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