Blogs

Books Measuring the User Experience by Tom Tullis & Bill Albert Beyond the Usability Lab by Bill Albert, Tom Tullis & Donna Tedesco Practical Guide to Usability Testing by Joe Dumas & Ginny Redish Usability Engineering by Jakob Nielsen Practical Guide to Measuring Usability (also available electronically) by Jeff Sauro Handbook of Usability Testing by Jeff Rubin & Dana Chisnell Moderating Usability Tests by Joe

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This is the final outline of our book with Morgan Kaufmann. It will bring together almost a decade of research on finding the best statistical approaches to solving the most common issues in user research. Publication date is April 15 2012.Introduction & How to Use this BookVisual Guide to What TestSkipping the formulasQuantifying User ResearchWhat is User Research?Usability Tests (lab and remote)BenchmarkingComparative TestingQualitative StudiesSurveysRequirements GatheringA/B

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Rating scales are used widely. Ways of interpreting rating scale results also vary widely. What exactly does a 4.1 on a 5 point scale mean? In the absence of any benchmark or historical data, researchers and managers look at so-called top-box and top-two-box scores (boxes refer to the response options). For example, on a five-point scale, counting the number of respondents that selected the most

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Remote user research has increased the demands for people willing to take surveys, provide website feedback and participate in usability tests. In exchange for their time, users are compensated. One drawback to these professional users is that there are some who are in it just for the money. Consequently, they may not take your study seriously and "speed" through the questions to receive their remuneration.

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In usability testing we ask users to complete tasks and often ask them to rate how difficult or easy the task was. Does it matter when you ask this question? What happens if we interrupt users during the task instead of asking it after the task experience is over? Almost ten years ago researchers at Intel asked 28 users to complete various tasks across websites

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There are many helpful books on usability testing. It is also helpful to know what actually happens in usability tests, including what metrics people collect. I asked MeasuringU newsletter subscribers to answer a few questions about how they measure usability. Sign up for weekly updates at the bottom of this page. In addition to the number of users tested, I also asked about what data

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If you've read a book by Malcolm Gladwell then you know how he has a knack for making the mundane meaningful through drama-filled story telling. In his book, Outliers, he makes a convincing case that birthday matters for success in hockey. Being born as close to the year-end cut-off provides a developmental advantage. According to Gladwell, a disproportionate number of NHL hockey players have birthdays

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In a few seconds what can you tell about people… or websites? Some famous research has shown that student evaluations given after only a few seconds of video[pdf]are indistinguishable from evaluations from students who actually had the professor for an entire semester! There has been some relevant research on the importance of immediate website actions and impressions: Visual Appeal: Impressions of a homepage's visual appeal

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If you're familiar with usability testing then you're familiar with the magic number 5. Five users will on average find most of the problems that affect at least one-third or more of your users.  If problems are less common, then you will need to test more users to find and fix them. On many high-traffic websites usability problems affect less than 1 out of 10

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There are many great books (some classics) on conducting usability tests. These books provide the blueprint for conducting an ideal usability test. One common theme these books present is that when conducting a test you are to act, as best as possible, as a neutral observer. Don't lead users, don't put words in their mouth and don't just tests as a formality to confirm your

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