Web Survey Bibliography
With the rise in popularity of computer assisted survey instrumentation it is important to determine whether respondents are influenced by the medium of data collection. Two hundred forty-five staff members at a large health-care related organization, diverse across education, race/ethnicity and gender, were surveyed for the present study. Participants were asked to complete two identical satisfaction questionnaires, administered once on paper and once on-line. The Rasch probabilistic model was used to assess the collected information. Analysis suggested the existence of several statistically significant differences between the on-line and on-paper surveys. Additional study will be necessary, but the assumption of online and paper equivalence should likely not be taken for granted.