AbstractThe System Usability Scale (SUS) is a widely adopted and studied questionnaire for usability evaluation. It is technology independent and has been used to evaluate the perceived usability of a broad range of products, including hardware, software, and websites. In this article we present a Slovene translation of the SUS (the SUS-SI) along with the procedure used in its translation and psychometric evaluation. The results indicated that the SUS-SI has properties similar to the English version. Slovene usability practitioners should be able to use the SUS-SI with confidence when conducting user research. Additional informationFundingThis research was funded in part by the European Union, European Social Fund, Operational Program for Human Resources, Development for the Period 2007–2013. We thank all who contributed to the creation and validation of SUS-SI by translating, back-translating or participating in the survey.Notes on contributorsBojan BlažicaBojan Blažica is an electrical engineer with a Ph.D. from the fields of Human-Computer Interaction and Artificial intelligence. He is focused on the context awareness of natural user interfaces in general and multitouch displays specifically as well as usability evaluation and user experience design. He is one of the initiators of the Slovenian HCI community (http://www.hci.si).James R. LewisJames R. Lewis is a senior human factors engineer (at IBM since 1981), focusing on the design/evaluation of speech applications. He has published influential papers in the areas of usability testing and measurement. His books include Practical Speech User Interface Design and (with Jeff Sauro) Quantifying the User Experience.
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Blažica et al. (2014) studied this question.