Research Methods in Human-Computer Interaction by unknow

Author:unknow
Language: eng
Format: epub
Publisher: Elsevier Science & Technology
Published: 2017-09-15T00:00:00+00:00

Figure 10.1 An airline check-in screen with at least one clear usability flaw. Source: www.ua2go.com.

The range of usability testing is quite broad. Usability testing can involve hundreds of users, have a number of controls, and use a true experimental design. Usability testing can also involve a researcher sitting down next to three users, watching them go through the interface, and then taking basic notes on where the problems are. While both of these exercises can be called usability testing, it is more likely that the former would be considered research and would be published. Usability testing can involve hypothesis testing, tight controls, control groups, and a large enough number of participants to determine statistically significant differences. However, that’s not the way that most usability testing happens (Rubin and Chisnell, 2008). Why? In industry, the extra time needed to plan controls and do random assignments, and the high number of participants needed, are often a barrier to entry (Rubin and Chisnell, 2008). If the choice is that you must do all of those or nothing at all, businesses often choose to do nothing. Therefore, more flexible, easier, and quicker methods are often used. Where does usability testing end and research begin? It’s an unclear, fuzzy line and the distinction is not all that important.

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