Streamlining the SUPR-Qm: The SUPR-Qm V2

• James R. (Jim) Lewis, Ph.D

  MeasuringU

  Author

• Jeff Sauro, PhD

  MeasuringU

  Author

The SUPR-Qm is a standardized questionnaire for the assessment of the UX of mobile apps. In this paper, we describe our analysis of large-sample datasets to (1) replicate the Rasch model reported in the initial publication of the SUPR-Qm in 2017, (2) identify redundant items from the original 16-item SUPR-Qm that could be removed to create a streamlined 5-item version (SUPR-Qm V2), (3) demonstrate the stability of the SUPR-Qm and SUPR-Qm V2 over two multiyear periods in which data were collected for 155 mobile apps across 23 industries, and (4) develop interpretive norms (including curved grading scales) for the SUPR-Qm and SUPR-Qm V2. This new version enhances the usefulness of the SUPR-Qm for UX practitioners and researchers who need a standardized questionnaire that provides a quick 5-item measure of the UX of mobile apps. The SUPR-Qm V2 is easy to interpret with norms that should remain stable for many years.

1. James R. (Jim) Lewis, Ph.D, MeasuringU

   Dr. Lewis is a Distinguished User Experience Researcher at MeasuringU. He has published influential papers on the assessment of perceived usability and sample size estimation for usability studies and has product experience in the design and evaluation of user interfaces (graphical, spoken, mobile), including having been the lead interaction designer for the product widely regarded as the first smart phone, the Simon. He is on over 90 US patents and has over 100 publications. His five books include Practical Speech User Interface Design and, with Jeff Sauro, Quantifying the User Experience and Surveying the User Experience. In 2021, he was inducted into the Academy of Medicine, Engineering, and Science of Florida.

2. Jeff Sauro, PhD, MeasuringU

   Dr. Sauro is a six-sigma trained statistical analyst, CEO and founder of MeasuringU. He has consulted with companies such as Google, Meta, and Walmart, and has published over 25 peer-reviewed articles and seven books, including Surveying the User Experience.