Usability Sciences manages five state-of-the-art usability labs in their Irving Texas office. Each usability lab consists of two adjacent rooms, wired for digital audio and video recording, with a separate client viewing room.

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Usability Sciences manages five state-of-the-art usability labs in their Irving Texas office. Each usability lab consists of two adjacent rooms, wired for digital audio and video recording, with a separate client viewing room.
10x 1-hour persona interviews with female car shoppers in 2 days. Things I learned: this room needs a fan.
The joys of think-out-loud testing
The setting is a usability lab. A blond man is sitting at a computer and a dark-haired woman is standing next to him.
Panel 1
Woman: As you try this usability prototype, please think out loud as you decide what to click
Man: OK.
Panel 2
Man, smiles: Wow, Look at all these colorful buttons. It looks like a marquee in Vegas. Ahh, Vegas. Good times.
Panel 3
Man, hand on chin, remembering: Like the sales convention when we met those dancers at the Flamingo and filled the hot tub with Cheez-Whiz.
Panel 4
Woman, frowning: Okay, that's enough thinking out loud.
Man, pensively: Thank goodness the rash cleared up.
Source
http://www.bugbash.net/comic/116.html