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    Can users recall their user experience with a technology? Temporal bias and the system usability scale

    HCI 2018

    Proceedings of the 32nd International BCS Human Computer Interaction Conference (HCI 2018)

    Belfast, UK, 4 - 6 July 2018


    Kyle Boyd, Raymond Bond, Justin Magee & Paul McCormack



    The System Usability Scale (SUS) score survey is a widely respected tool for measuring usability. While there are other surveys available such as the User Experience Questionnaire (UEQ) or the Single Ease Question (SEQ), the SUS is amongst the most popular and widely used instrument. SUS provides an easy-to-understand score with benchmarking. Generally, a SUS score is administered directly after a usability test to assess the user experience and the usability of a product, including websites and smartphone apps and more. However, some researchers have used it as a survey as part of a ‘in the wild’ trial which is often completed after the trial or indeed sometime after the subjects interacted with the technology. With this in mind the aim of this research was to see if a participant’s user experience would change if a SUS score was administered at different times after a test to understand if recalling the usability of technology led to temporal bias for the SUS.


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