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Hey everyone,
I want to create an intervention study with three different groups. Participants will click on an URL provided by Sona, and should then be randomly assigned to one of these groups.
However, if I simply use the hidden random number generator question, I might end up with unequal group sizes at the end, as it is truly random and with rather small sample sizes, this could be pretty skewed at the end. So how can I make sure that I participants are assigned randomly to one of three groups, but at the same time I end up with roughly equal group sizes?
