Converting Rating Scales to 0–100 Points

There are a lot of ways to display multipoint rating scales by varying the number of points (e.g., 5, 7, 11) and by labeling or not labeling those points. There’s variety not only in how rating scales are displayed but also in how you score the responses. Two typical scoring methods we discussed earlier are reporting

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Sample Size Recommendations for Benchmark Studies

One of the primary goals of measuring the user experience is to see whether design efforts actually make a quantifiable difference over time. A regular benchmark study is a great way to institutionalize the idea of quantifiable differences. Benchmarks are most effective when done at regular intervals (e.g., quarterly or yearly) or after significant design

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Leading Vs. Lagging Measures in UX

Driving down the road while only looking in the rearview mirror … that gives you a good idea of where you’ve been, but unless the road behind you is exactly like the one in front of you, you may run into some obstacles, to put it mildly. Safe and effective driving means looking forward and

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The User Experience of Meeting Software

If you’ve had a meeting recently it was probably a virtual meeting. The use of online meeting software with integrated video and screen sharing capabilities, such as Zoom and Google Hangouts, has been growing for years. To say the usage has now skyrocketed is probably an understatement. Online meetings are ubiquitous in business and are

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Approximating Task Completion When You Can’t Observe Users

If users can’t complete a task, not much else matters. Consequently, task completion is one of the fundamental UX measures and one of the most commonly collected metrics, even in small-sample formative studies and studies of low-fidelity prototypes. Task completion is usually easy to collect, and it’s easy to understand and communicate. It’s typically coded as

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Three Branches of Standardized UX Measurement

We write extensively about standardized UX metrics such as the SUS, PSSUQ, and SUPR-Q. The main benefits of standardization include improved reliability, validity, sensitivity, objectivity, quantification, economy, communication, and norms. Even when standardized UX questionnaires are developed independently, they are influenced by earlier work, just like how UX itself is a new field built upon earlier

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10 Things to Know About the Post Study System Usability Questionnaire

We’ve written extensively about the System Usability Scale (SUS). It’s the most widely used and cited questionnaire for measuring the perception of the user experience. But likely the second most widely used and cited questionnaire, with over 2,000 citations, is the Post Study System Usability Questionnaire (PSSUQ). It also goes by the name of Computer

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Can UX Metrics Predict Software Revenue Growth?

Does better usability lead to more revenue? What about positive word of mouth? Is it tied to revenue growth? Are UX metrics for usability and intent to recommend able to track future revenue growth? Many UX researchers who work for software companies or on software products collect UX metrics. In fact, we strongly advocate for

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sus-predict

Can You Use a Single Item to Predict SUS Scores?

The System Usability Scale (SUS) has been around for decades and is used by hundreds of organizations globally. The 10-item SUS questionnaire is a measure of a user’s perception of the usability of a “system,” which can be anything from software, hardware, websites, apps, or voice interfaces. The items are: I think that I would

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sus-interpret-feature

5 Ways to Interpret a SUS Score

The System Usability Scale (SUS) is a popular measure of perceived usability. It’s a 10-item questionnaire scored on a 101-point scale and provides a measure of a user’s perception of the usability of a “system.” A system can be just about anything a human interacts with: software apps (business and consumer), hardware, mobile devices, mobile

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