Using Decks to create Treatment and Control Group

Hi,
I want my survey to split the respondents into two equal parts after the first 2-3 pages.
Group 1 and Group 2 should receive different experiments. I think this is done with either decks or segments but couldn’t figure it out by myself how to actually do it.

Thanks in advance,
Arne

Hi Arne,

you should indeed use a deck to achieve this. Create a deck of size 2 and call it e.g. “group”. For each respondent the value of the variable “$group” will be either 1 or 2 in a uniform distribution.

You can then add a display condition “$group == 1” e.g. to a question and the question will only be shown to those participants who got value 1 from the deck.

If you want to hide an entire section from a group of participants you can use a branch element with such a display condition. Those participants that fulfill the display condition of the branch will directly jump to the page selected in the branch element.

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