Using the End-User Computing Satisfaction (EUCS) instrument to measure satisfaction with a Web site

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Abdinnour, Sue
Chaparro, Barbara S.
Farmer, Steven M.

Abdinnour-Helm, S. F., Chaparro, B. S. and Farmer, S. M. (2005), Using the End-User Computing Satisfaction (EUCS) Instrument to Measure Satisfaction with a Web Site. Decision Sciences, 36: 341–364. doi: 10.1111/j.1540-5414.2005.00076.x


The purpose of this study is to revise and revalidate the End-User Computing Satisfaction (EUCS) instrument to measure satisfaction with a Web site from a usability perspective. This study is especially important given the increased significance of the Web and the uniqueness of the Web as a computing environment. A total of 176 students participated in a lab simulation that involved a usability evaluation of the Lands' End Web site ( Students were asked to complete a set of tasks, record their answers, and then complete the EUCS instrument. Confirmatory factor analysis and invariance analyses were conducted to test the reliability, validity, and generalizability of the revised EUCS. The results show that the EUCS is a valid and robust instrument in the Web environment but that one of the subfactors, timeliness, will need further refinement in the future. Usability practitioners can use the EUCS to measure end-user satisfaction with a Web site and use the feedback for improving Web-site design. We describe a case study of an actual usability application that utilized the revised EUCS effectively to support the design of building supply Web sites involving two types of end users, homeowners and contractors. We also propose a typology that researchers can use as a starting point to judge when it is necessary to revalidate an instrument like the EUCS. Finally, we discuss the limitations of our study and present avenues for future research.

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