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Chapter 5. Let the Game Tester Do the Ta... > 5.7 Discussion and Conclusion - Pg. 75

5.7 DISCUSSION AND CONCLUSION And quite often, data collected in an interview appear to be in conflict with data obtained via other means. For example, participants might indicate in the interview that they thought that the interface was easy to work with, whereas the observation data clearly indicate otherwise. One should be careful to confront participants with such inconsistencies, but rather try to find out whether or not for example experience with other similar devices plays a role, or that they are very happy with certain aspects of the device, e.g. the aesthetic aspects, resulting in a much more friendly overall rating of the device than one would expect on the basis of observed usability issues alone. The interested reader who wants to learn in more depth about how to design and conduct interview studies is referred to Oppenheim (2000), Wilson and Corlett (2005). 5.7 Discussion and Conclusion Think-aloud and interviewing are approaches that are often used techniques for evaluating regular consumer products. However, because games differ from regu- lar products in a number of ways, it is relevant to ask if these techniques can be applied for evaluating games as well. Most products are designed to fulfill a par- ticular "useful" function, hence need to be effective and efficient, whereas games