Is it possible to specify the frequency with which some options are chosen within a block? For example a 0.25/0.75 split instead of even split?
Weighted Block Randomization
Userlevel 2
+10
Hi there, could you explain just a bit more what you mean by "some options"?
Userlevel 6
+37
Hi Aoshotse,
I think the randomizer don't provide such option.
But an alternative option is to use a random number generator combined with conditional branching.
- first, set a new embedded data for a random number (it can be from 1 to 100 if you want to use percentage or just from 1 to 4 in your example)
- then add one branch for each group of question you want to randomize, conditionnal to the ratio you want
Here is an example :
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