Articles by Tonya L. Smith-Jackson
Tonya L. Smith-Jackson is an Associate Professor in the Grado Department of Industrial and Systems Engineering (ISE), where she teaches courses in human factors engineering, cognition, usability, and safety systems. She is director and codirector of 3 laboratories, and is also the director of the Human Factors Engineering and Ergonomics Center. Her usability work focuses on software and hardware interfaces for mobile phones, requirements elicitation and application to design, and in finding innovative and practical ways to elicit and assess latent factors in usability.
Decision Models for Comparative Usability Evaluation of Mobile Phones Using the Mobile Phone Usability Questionnaire (MPUQ)
Abstract A comparative usability evaluation was performed using various subjective evaluation methods, including Mobile Phone Usability Questionnaire (MPUQ). Further, decision-making models using Analytic Hierarchy Process (AHP) and multiple linear regression were developed and applied. Although the mean rankings of the four phones were not significantly different across the evaluation methods, there were variations across the […] [Read More]
Reliability and Validity of the Mobile Phone Usability Questionnaire (MPUQ)
Abstract This study was a follow-up to determine the psychometric quality of the usability questionnaire items derived from a previous study (Ryu and Smith-Jackson, 2005), and to find a subset of items that represents a higher measure of reliability and validity. To evaluate the items, the questionnaire was administered to a representative sample involving approximately […] [Read More]