Hi there, I am having a good amount of trouble trying to set up randomization without replacement on a survey. I have six conditions, and I need every participant to be in two, but to not go through the first one twice. I know this could be completed under one randomizer, but I need every participant to answer the same question block after completing the first condition, so they have to come out of the randomizer to complete that.I know that people have asked questions related to this in the past, and I have read those question threads and tried to implement the solutions, and although it looks like it is set up correctly, I am running into problems. Currently, it seems as though it is working, in that my test run-throughs have not been giving me the same condition twice. However, the embedded data columns are printing out empty in the exported data, and the flow IDs (which I require) are all messed up, leading me to believe something must be wrong. I need access to either the flow IDs or the embedded data in order to know what ‘condition’ participants were randomized into. I previously had the embedded data set just to ‘Text’, before I got a recommendation to use ‘Text Set,’ but I was having the same problem when I was utilizing ‘Text.’ I have tried a few different organizations, including having the branches set under the randomizer and having one embedded data for each block to mark which condition they had seen in the first randomizer and then use that to prevent them from seeing the same condition the second time. I have included screenshots (in the order of the survey flow) which I hope illustrate the survey flow and the problem with the output that I am receiving.I am not a Qualtrics expert, but I have tried to watch many tutorials, read the Qualtrics pages, and read the forum questions, and have yet to solve the problem. If anyone has any advice, I would greatly appreciate it, and thank you so much.

I could be not understanding this correctly here, so please be patient and re-explain if I’m wrong - could you randomly assign to show 2 blocks at the same time, “in theory” as long as you select “evenly present” it SHOULD NOT present the same 2 blocks/embedded data twice on a single survey, I would test it, but I think that would work.It may be worth rearranging your block display logic and embedded data naming so it would be Al = 1, Al = 2, etc…rather than Al1, Al2. Then set an additional piece of embedded data at the very top of your survey just called Al, that way later down in the survey flow they’ll be assigned their Al value. There is also always the Qualtrics answer of turn it off (delete it) and on again (rebuild it) to see if those values appear on the export - I would do so by creating a survey copy to test with.

Randomization without Replacement Troubleshooting

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