Many studies of electronic commerce usage, particularly the Georgia Tech and Wharton studies, rely upon on-line survey methods, on the assumption that the large number of responses obtained will outweigh some of the bias due to self-selection by respondents. In "Sensitivity of E-Commerce Measurement to the Survey Instrument," Vasja Vehovar, Katja Lozar Manfreda, and Zenel Batagelj show that Web-based surveys with e-mail contact can be far more sensitive to the instrument than traditional paper surveys with phone contact. Since errors in estimates of measures can be substantial as compared to other survey methods, the method deployed in an e-survey has to be stated with great precision.
STEFAN KLEIN (Stefan.Klein@uni-muenster.de) is professor of information systems at the University of Muenster, Germany. His research and teaching areas are interorganizational systems, information management, and communication systems. He was research track chair for the Thirteenth Bled International Conference on Electronic Commerce, and is a member of the editorial board of Electronic Journal of Organizational Virtualness, Electronic Markets, European Journal of Information Systems, International Journal of Electronic Commerce, and Information Technology and Tourism.
BOB O'KEEFE (Bob.OKeefe@brunel.ac.uk) is professor of information management at Brunel University, England. He has a Ph.D. from the University of Southhampton. His research and teaching areas are electronic business, customer interaction, and decision support systems. He is research track chair for the Fourteenth Bled International Conference on Electronic Commerce and co-editor of the European Journal of Information Systems.