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WorldCist'17 - 5th World Conference on Information Systems and Technologies

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European Portuguese Validation of Usefulness, Satisfaction and Ease of Use Questionnaire (USE)

Background: The Usefulness, Satisfaction and Ease of use (USE) is a 30-item questionnaire developed to assess self-perceived usability. Objective: The study reported in this paper supports the translation, cultural adaptation and validation of the European Portuguese version of the USE. Methods: The study was divided into two phases, the questionnaire translation and adaptation, and the assessment of its validity and reliability. Results: The questionnaire translation resulted in a European Portuguese version of the USE equivalent to the original version in terms of semantic and content, which presents an excellent internal consistency (α = 0.80), highly satisfactory ICC values (ICC = 0.69) and a high and significant correlation with another widely used usability questionnaire, the Post-Study System Usability Questionnaire (r = -0.84, p < 0.05). Conclusion: The European Portuguese version of the USE has adequate psychometric properties that provide adequate evidence of the possibility of using this version in studies to evaluate the self-perceived usability of a product or service.

Author(s):

Carina Dantas    
Cáritas Diocesana de Coimbra
Portugal

Ana Luisa Jegundo    
Cáritas Diocesana de Coimbra
Portugal

João Quintas    
IPN
Portugal

Ana Martins    
University of Aveiro
Portugal

Alexandra Queirós    
University of Aveiro
Portugal

Nelson Rocha    
University of Aveiro
Portugal

 

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