It sounds easy. But few folks on this list are HCI researchers (I'll tell you it's odd going from GPU design to HCI - but it's fun!).
None of the micro-tasks (mouse vs keyboard) that folks are going on about on this list is meaningful to measure. We know keyboards are good for some things, and mice are good for others. Leaving off my personal religion and anecdotes (I use acme as my editor of choice), the only meaningful measure is how well the whole system functions for your tasks. And to really measure that you need similar measures of expertise. So we can compare vi to notepad, for example, and find that "keyboard is better than mouse" by some measure, but grab an expert acme user vs vi, and perhaps acme comes out ahead on some task completions and behind on others.
There are, however, good models of what various interactions cost - the bibilography on doi
10.1145/1978942.1979088 (Bonnie John, "Using Predictive Human Performance Modls of Inspire and Support UI Desgin Recommendations") is a recent starting point on predictive modelling for interface design (that I have in front of me - I know there's better sources). I'd recommend becoming familiar with this literature, and then trying to make the "mouse vs keyboard" argument witha straight face.
Paul
On Fri, Jun 17, 2011 at 6:55 AM, Iruatã Souza
<iru.muzgo@gmail.com> wrote:
> better with it... but generally keyboard is much faster on most day tasks,
> people just don't have the patience to learn it
>
Measuring the keyboard versus mouse speed is such a trivial experiment
to repeat.
Still, as Noah pointed out, people rely on intuition.
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