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Determining What Individual SUS Scores Mean: Adding an Adjective Rating Scale

Aaron Bangor, Philip Kortum, and James Miller

Journal of Usability Studies, Volume 4, Issue 3, May 2009, pp. 114-123

Article Contents


Procedure

The adjective rating scale statement was added at the bottom of the same page as the SUS and participants filled it out immediately after they gave their SUS ratings. The SUS with the added adjective scale was administered to 964 participants. It was used in the same wide range of studies as the SUS data reported by Bangor, Kortum, and Miller (2008), including all of the user interface modalities, across a wide age range (Mean=40.4, SD=13.9, Range: 18-81 years) and an approximately equal balance of gender (Female=474, Male=490). The modified SUS was used in all studies in which we would have normally administered the SUS during this data collection period.

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