Just read an interesting discussion in one of the blogs at http://www.acm.org.

On the Importance of Replication in HCI and Social Computing Research, by Ed H. Chi:
http://cacm.acm.org/blogs/blog-cacm/109916-on-the-importance-of-replication-in-hci-and-social-computing-research/fulltext

From the blog:
>
> In the second experiment, when restricted to retrieval tasks rather > than including comparison tasks also, Hyperbolic Browser was faster, > and users appears to learn more of the tree structure than Explorer. >
> What’s interesting is the interpretation of the results suggest that > squeezing more information onto the screen does not improve subject > perceptual and search performance. Instead, the experiment show that > there is a very complex interaction between visual attention/search > with density of information of the display. Under high scent > conditions, information seems to ‘pop out’ in the hyperbolic browser, > helping to achieve higher performance.

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