Hi! I am quite new to Qualtrics, and I am stuck with the following problem: For my study, participants should make pairwise ratings, meaning that they will make 3 rounds with 2 pictures each, that should be shown randomly. For example, in the first round, one participant sees picture 1 and 2, in the second round picture 3 and 4, and in the last round 5 and 6. For the next participant, this order could be 4 and 2, 5 and 1, and 3 and 6.Every participant should see a random order, but should only see each picture once. Does anyone have an idea on how to do that? Thank you in advance!

Create six embedded data, one for each image and set its value to 0. Create a randomizer (for selecting image 1 of pair 1) and in randomizer add the branch for each image as if embedded data for that image is equal to 0, assign image 1 pair 1 embedded data it. So the flow will be:The above flow will select one image for pair 1, similarly we will create more 5 randomizer to to assign each image url to a pair without repetition.

pairwise combination of 6 pictures | Experience Community

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