“User Testing Demystified” by Dana Chisnell

Published in A List Apart, 2009-10-06 Highlights:

Every time a person has a great experience with a website, a web app, a gadget, or a service, it’s because a design team made excellent decisions about both design and implementation—decisions based on data about how people use designs. And how can you get that data? Usability testing.

Focusing on the behavior you’re interested in observing is easier than trying to select for market segmentation or demographics… don’t make recruiting harder than it has to be.

At the end of each session, be sure to take a step back with the participant and ask, “How’d that go?”

[T]he most effective input for informed design decisions is data about the behavior and performance of people using a design to reach their own goals.
Resources from The Handbook of Usability Testing http://www.wiley.com/WileyCDA/WileyTitle/productCd-0470185481,descCd-DOWNLOAD.html