Randomisation for 3 arm trial

Question

I need to randomise my participants after they have finished a questionnaire and baseline data input.  I just need them to be allocated to one of three groups and for there to be a way for me to identify which group they have been allocated to.  At this point they can be directed to 3 different information sheets.  Can someone point me in the direction of how I do and specifically how I can identify which group each participant has been allocated to?  Many thanks

ahmedA · Answer

Create an ED called Treatment (or anything else) at the start of your survey and keep it empty.Let’s say you want to show 3 blocks (A,B,C) based on your treatment. At present, you’ve put them in a randomizer and hence the respondent sees only one. But you are unable to identify what their group was.For that, in the survey flow, create another ED block, here set the value of Treatment to A. Now create a group, in that group, put the block A and the ED block where the treatment ED is assigned to A.Create another similar group for B and for C.Now instead of the blocks, put these three groups in the randomizer.

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