I am trying to randomize people to 4 different conditions at a ratio of 2:1:1:1. Ie, in a sample of 1,000 - 400 see condition A, 200 see B, 200 see C, 200 see D. Is there a way to do this using the randomizer tool?

Yes. You have a simple ratio so it isn’t too bad. You will create an embedded variable to assign your condition. If your conditions are A, B, C, D and you want the 2, 1, 1, 1 ratio then you simply put the A value in twice and the other conditions in once. Then have the program randomly draw just one. See screen cap:

@bstrahin- Hi, what if the ratio is not simple, is there any other way out?Thanks.You can use JavaScript or a web service to set the embedded data field.

How to create uneven randomization allocation

How to create uneven randomization allocation | Experience Community

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