John Brooke (1996)
Usability Evaluation in Industry (P. W. Jordan, B. Thomas, B. A. Weerdmeester, & I. L. McClelland, Eds.), 189-194.
Abstract. The System Usability Scale: a 10-item Likert questionnaire yielding a single 0-100 score. Quick to administer, robust across technologies, and benchmarked against hundreds of studies. An SUS score above 68 is typically considered above average.
Tags: usability-testing sus measurement
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