Articles by James R. (Jim) Lewis, Ph.D
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.
Introduction to Volume 15, Issue 4
Our August 2020 issue features an essay from Douglas Gillan, “Usability Issues in Human-Robot Interaction.” This essay describes the variety of robots with which humans currently interact and with whom we will interact in the future. To avoid the “productivity paradox” that followed the introduction of computers to the general workplace, it is very important […] [Read More]
Introduction to Volume 15, Issue 3
Our May 2020 issue features an essay from Bernard Rummel, “About Time: A Practitioner’s Guide to Task Completion Time Analysis.” This essay brings together lines of research that he has published in the Journal of Usability Studies, formatted to help practitioners understand how to get more out of time-on-task data collected in usability studies. In […] [Read More]
Introduction to Volume 15, Issue 2
Our February 2020 issue starts with an essay from Gilbert Cockton, “Usability Diverges Media Converges, Design Remerges.” In the essay, he provides a historical perspective on relationships between UX design and other design traditions and approaches, including design theory, creative design practice, design thinking, agile, and service design. In addition to the essay, this issue […] [Read More]
Introduction to Volume 15, Issue 1
We are delighted to publish an essay by Carol Barnum titled “The State of UX Research.” The author discusses the current trends towards faster, informal research studies. She reviews the current state of UX education and questions whether short UX courses are providing students and professionals with the necessary rigor. She also takes a look […] [Read More]
Introduction to Volume 14, Issue 4
Our August 2019 issue starts with an essay from Carol Smith, “Intentionally Ethical AI Experiences.” In this essay, she explains how bias can enter artificial intelligence applications and the important role user experience professionals can play in reducing bias in the AI development steps of content/curation, model training, and maintenance. In addition to the essay, this […] [Read More]
Comparison of Four TAM Item Formats: Effect of Response Option Labels and Order
Abstract The purpose of this research was to investigate the effect of manipulating item formats for a revised version of the Technology Acceptance Model (TAM) questionnaire. The TAM has 12 items, six assessing perceived usefulness (PU) and six assessing perceived ease of use (PEU). Its original purpose was to quantify likelihood of technology acceptance, using […] [Read More]
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]