2009/5/7 Brian <Brian.Mingus(a)colorado.edu>du>:
This all goes back to how you aim to quantify
improvement in usability.
These samples sizes are so small that it will be hard (or even impossible)
to evaluate your progress based on statistical significance. You've got to
prove to us that its really getting better, and doesn't just look prettier.
That's why, in addition to follow-up tests, the usability team is
working closely with Erik Zachte to make sure we've got good editing
metrics that show whether our changes are actually making a
substantial difference in engaging new contributors.
--
Erik Möller
Deputy Director, Wikimedia Foundation
Support Free Knowledge:
http://wikimediafoundation.org/wiki/Donate