I am using a Factorial Survey Method for my study. I have 16 vignettes, of which two of the 16 are randomly assigned to a survey participant. In pre-testing feedback, a survey participant thought the two vignettes were the same. The vignettes were similar but not exactly the same.
Is there a way to label the two vignettes that are randomly assigned and seen by a survey participant as Scenario One and Scenario Two so the survey participant knows they are different?