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In SSI Web 8 why do the levels in identical fixed tasks flip within concepts?

We have programmed a discrete choice conjoint experiment in SSI Web version 8.2.4.  It is a partial profile design. Shortcut method. We are using CAPI procedures to administer the survey.   We have used fixed tasks to create a warm-up task (1) and two identical hold-out tasks.  During pilot testing, we noted that the levels in the fixed tasks are flipping within concepts.  That is the attribute level in the top position for a concept in one hold out task, appeared in the bottom position of that concept on the next presentation.  During pilot testing this was noted on approximately 2 out of 3 pilot presentations. Horizontally, the tasks are correct.
asked May 28, 2015 by cunnic Bronze (1,440 points)
edited May 29, 2015 by cunnic

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