Introduction to Volume 16, Issue 1

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Our November 2020 invited essay is “No Interface? No Problem. Applying Human-Centered Design and HCDAgile to Data Projects,” by Carol Righi. The essay describes the insights of a group of human-centered designers, agilists, data scientists, and other technology enablement practitioners who tackled the question of how to apply the principles and practices of human-centered design (HCD), Agile development, and the overarching process of HCDAgile, to products that have no obvious user interface. 

The issue also includes a short essay by Ann Chadwick-Dias memorializing the life and contributions of Tom Tullis. 

In addition to the essays, this issue includes three research papers, all on different aspects of standardized UX measurement.

The first article is “Validity of Three Discount Methods for Measuring Perceived Usability,” by Ian Robertson and Philip Kortum. They compared four methods of collecting subjective usability data with the System Usability Scale (SUS), and found that one of those methods (delayed retrospective usability assessment) produced mean scores that were comparable to those obtained with a lab-based assessment.

The second article is “TrustDiff: Development and Validation of a Semantic Differential for User Trust on the Web,” by Florian Brühlmann, Serge Petralito, Denise Rieser, Lena Aeschbach, and Klaus Opwis. They report the development of a 10-item semantic differential questionnaire designed to measure user trust on three dimensions: Benevolence, Integrity, and Competence.

In the third article, “Validation of the GUESS-18: A Short Version of the Game User Experience Satisfaction Scale (GUESS),” Joseph Keebler, William Shelstad, Dustin Smith, Barbara Chaparro, and Mikki Phan discuss the psychometric work they conducted to develop a shorter (18-item) version of the 55-item Game User Experience Satisfaction Scale.