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Rotation of versions for CBC

How does SSI CAPI system ensure the rotation of different versions of a CBC across respondents?
asked Sep 25, 2012 by Asset (340 points)
retagged Sep 25, 2012 by Walter Williams

1 Answer

+1 vote
SSI Web provides a design version based on the internal respondent number assigned to the person taking the survey.  Online, these numbers are sequential, and versions are likewise given sequentially (respondent 1 sees version 1, etc.).

In the CAPI module respondent numbers are assigned at random, so version are also assigned at random.  When a respondent number exceeds the number of versions, it's treated as if we just started over from the beginning, i.e. if I had 300 versions and respondent 301 takes the survey, they would receive version 1.
answered Sep 25, 2012 by Brian McEwan Gold Sawtooth Software, Inc. (45,995 points)
Multiple CBC's in the same questionnaire