upa - home page JUS - Journal of usability studies
An international peer-reviewed journal

The Effect of Experience on System Usability Scale Ratings

Sam McLellan, Andrew Muddimer, and S. Camille Peres

Journal of Usability Studies, Volume 7, Issue 2, February 2012, pp. 56 - 67

Article Contents

About the Authors

Sam Mclellan

Sam McLellan

McLellan began his career with Schlumberger in 1983. He cofounded a corporate usability services team in the early 1990s to champion and formalize usability methodologies and was the inaugural leader of the company’s Human Interface Community of Practice. Currently he serves as the Usability Architect at its Houston engineering facility.


Andrew Muddimer

Andrew Muddimer

Muddimer is an ergonomist by degree and joined Schlumberger at its Industrial Design Group, where he completed large-scale hardware design projects, from ticket machines to seismic land equipment and control cabins. He served as Chief Usability Architect across all SIS engineering centers and is the 2012 President of the Houston chapter the HFES.


S. Camille Peres

S. Camille Peres

Peres is Assistant Professor of Psychology and conducts research on the design of auditory displays, using simulations to teach statistics, and the biomechanical impact of software designs and touch screen devices. She initiated and directs the Applied Cognitive Psychology program at the University of Houston-Clear Lake and is chair of the Professionalism division for the HFES.