For experience with online purchasing problems,
respondents indicated the frequency with
which they had experienced each of 13 online
purchasing problems uncovered from the exploratory
study (see the Appendix for the list of
problems). A 4-point category response format
was used with the following category labels:
1 = never; 2 = once; 3 = more than once;
and 4 = always. A summated experience score
was calculated using the following procedure.
For each of the 13 possible problems, each
respondent was assigned a score of 1 if s/he ever
experienced it and a 0 if otherwise. Next a total
experience score was computed by summing
across the 13 possible problems. The outcome is
an experience variable with a range from 0 (for
respondents who have never experienced any
problem) to 13 (for those who have experienced