One of the problems of usability testing websites is trying to get testers to behave as they would in the real world. It is a very ‘unnatural’ process. We recruit people into the lab, pay them money and ask lots of questions about the site and why they have done what they have done. Testers focus on the task they have been given, think about what they are doing, try and give rational explanations for their behaviour, and are not distracted by the kids or their phone. This is not what happens in real life where users click through most of the time not thinking very hard about what they are doing. To use Daniel Kahneman terms, in the lab users do more ‘slow’ thinking whereas in real life they are doing a lot of ‘fast’ thinking.