People doing usability testing often display video of the test participant in a small picture-in-picture window in the corner of the screen. Theoretically this increases observer empathy and helps convince even the most stubborn executive that their product makes users miserable—and needs fixing.
After years of teaching people to do usability testing, I’ve come to feel that showing observers the participant's face may not always be a good thing. In this presentation, I spell out the pros and cons of using picture-in-picture video.
Slides by Steve Krug, author of Don’t Make Me Think. Presented at the UXPA Boston Conference, May 19, 2017.