Articles by James R. (Jim) Lewis, Ph.D

Dr. Lewis is human factors engineer at IBM, specializing in voice interaction design and usability assessment. He is a past president of the Association for Voice Interaction Design (AVIxD). His books include Practical Speech User Interface Design (2011) and (with Jeff Sauro in 2012/2016), Quantifying the User Experience.

Introduction to Volume 14, Issue 2

We are delighted to publish an essay by Sara Czaja titled “Usability of Technology for Older Adults: Where Are We and Where Do We Need to Be.” The author discusses the difficulty of older adults in using information and communication technologies (ICTs), including potential usability barriers. She reviews the work done as part of the […] [Read More]

Introduction to Volume 14, Issue 1

For our November 2018 issue, we start with an editorial from Jim Lewis, “Is the Report of the Death of the Construct of Usability an Exaggeration?” In this essay, he argues that the construct of usability is not at a dead end as recently suggested in an important paper by Noam Tractinsky, but instead has […] [Read More]

Essay: Is the Report of the Death of the Construct of Usability an Exaggeration?

Mark Twain was undecided whether to be more amused or annoyed when a Journal representative informed him today of the report in New York that he was dying in poverty in London… The great humorist, while not perhaps very robust, is in the best of health. He said: “I can understand perfectly how the report […] [Read More]

Comparison of Item Formats: Agreement vs. Item-Specific Endpoints

Abstract The current study was an investigation of the extent to which items constructed with an agreement format were affected by acquiescence bias relative to responses to a matched set of items designed with item-specific formats. If an acquiescence bias existed, the expectation was that the magnitude of responses to agreement items would be consistently […] [Read More]

Introduction to Volume 13, Issue 4

We are delighted to publish an editorial by Marc Hassenzahl titled “A Personal Journey Through User Experience.” The author explores the relationship between function, beauty, and pleasure in product design from a historical perspective. In his essay, he argues that many in the usability community have historically neglected the importance of hedonics in our research […] [Read More]

Introduction to Volume 13, Issue 3

For our May 2018 issue, we start with an invited essay from Jeff Kelley on the origins of the Wizard of Oz (WoZ) prototyping methodology in the lab directed by one of the fathers of modern human factors engineering—Alphonse Chapanis.  Widely regarded as the originator of the WoZ method, in his essay, “Wizard of Oz […] [Read More]

Item Benchmarks for the System Usability Scale

Abstract From humble beginnings, the SUS has become a valuable tool in the toolkits of usability and user experience practitioners and researchers. We have developed regression equations that compute benchmarks for SUS items based on an overall SUS score. A review of the SUS literature on published benchmarks for the means of overall SUS scores […] [Read More]

Introduction to Volume 13, Issue 2

We are delighted to publish an editorial by Elizabeth Rosenzweig, Aaron Nathan, Nicholas Manring, and Tejaswini Rao Racherla titled “Creating a Culture of Self- Reflection and Mutual Accountability.” The authors explore the topic of bias in user research, with a particular focus on UX professionals evaluating their own designs. They argue that potential bias can […] [Read More]