Pictorial System Usability Scale (P-SUS): Developing an Instrument for Measuring Perceived Usability

We have developed a pictorial multi-item scale, called P-SUS (Pictorial System Usability Scale), which aims to measure the perceived usability of mobile devices. The scale is based on the established verbal usability questionnaire SUS (System Usability Scale). A user-centred design process was employed to develop and refine its 10 pictorial items. The scale was tested in a first validation study (N=60) using student participants. Psychometric properties (convergent validity, criterion-related validity, sensitivity, and reliability), as well as the motivation to fill in the scale were assessed. The results indicated satisfactory convergent validity for about two-thirds of the items. Furthermore, strong correlations were obtained for the sum scores between verbal and pictorial SUS, and the pictorial scale was perceived as more motivating than the verbal questionnaire. The P-SUS represents a first attempt to provide a pictorial usability scale for the evaluation of (mobile) devices.


Published in:
Chi 2019: Proceedings Of The 2019 Chi Conference On Human Factors In Computing Systems
Presented at:
CHI Conference on Human Factors in Computing Systems (CHI), Glasgow, SCOTLAND, May 04-09, 2019
Year:
Jan 01 2019
Publisher:
New York, ASSOC COMPUTING MACHINERY
ISBN:
978-1-4503-5970-2
Keywords:
Laboratories:




 Record created 2019-07-24, last modified 2019-08-30


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