T13: Assessing User Experience (UX) with Two Items: The UX-LITE

Wednesday, 29 June 2022, 17:00 – 21:00 CEST (Central European Summer Time - Gothenburg, Sweden)
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James R. Lewis (short bio)

MeasuringU, United States



The purpose of this course is to provide an introduction to the UX-LITE, a relatively new UX questionnaire that contains just two items focused on the core issues of perceived usefulness and perceived ease-of-use. This introduction will include background on standardized usability measurement, where the UX-LITE came from, the research supporting its use as a measure of UX in research and applied UX work, and how to analyze UX-LITE data. At the end of the course, attendees will know the history of the UX-LITE, how to use it in current work, and where future research is likely to go.


Content and Benefits:

The course starts with coverage of the basic psychometric properties of standardized measurement – reliability, validity, and sensitivity. The next topic is a brief review of the inventory of post-study questionnaires. This will lead into a theoretical discussion of the statistical connections between the UX-LITE, the System Usability Scale, and the Technology Acceptance Model. From here, the tutorial moves to the practical use of the UX-LITE through data analysis/interpretation and numerous quantitative exercises. After completing this course, attendees will have a firm foundation in why and how to use the UX-LITE.

  1. Introduction to standardized usability measurement
    1. What is usability?
    2. What is a standardized questionnaire?
    3. Advantages of standardized usability questionnaires
    4. What standardized usability questionnaires are available?
    5. Assessing the quality of standardized questionnaires
  2. The history of the UX-LITE
    1. Where did the UX-LITE come from?
    2. What research supports the use of the UX-LITE as a measure of user experience?
  3. How to use the UX-LITE
    1. Basic statistical review
    2. Comparing UX-LITE scores (including quantitative exercises)
    3. Computing confidence intervals (including quantitative exercises)
    4. Interpreting UX-LITE scores (including quantitative exercises)
  4. The future of the UX-LITE
    1. Research
    2. Practice
  5. Wrapping up


Target Audience:

The course will likely be of interest to a wide variety of attendees, but will be especially useful to those user experience practitioners and HCI researchers who need a very concise standardized measure of user experience. Attendees should have access to computers with spreadsheet software to work through the quantitative exercises.

Bio Sketch of Presenter:

Dr. James R. (Jim) Lewis, Ph.D., CHFP
James R. (Jim) Lewis graduated with an M.A. in Engineering Psychology in 1982 from New Mexico State University and received his Ph.D. in Experimental Psychology (Psycholinguistics) from Florida Atlantic University in 1996. He worked as a human factors engineer and usability practitioner at IBM from 1981-2019, and since 2020 has been the Distinguished User Experience Researcher at MeasuringU. He is co-editor in chief of the Journal of Usability Studies, on the editorial board of the International Journal of Human-Computer Interaction, and is a member of the Academy of Science, Engineering, and Medicine of Florida. He is the author of "Practical Speech User Interface Design" (2011) and co-author (with Jeff Sauro) of "Quantifying the User Experience" (2012/2016). He is a BCPE Certified Human Factors Professional, an IBM Master Inventor with 91 issued US patents, a member of HFES, UXPA, a member and past-president of the Association for Voice Interaction Design, and in 2021 was inducted into the Florida Academy of Science, Engineering, and Medicine.