Hi all,
I am running a survey where participants are asked 4 questions about an image.
There are more than 60 images but these will be randomised, so that participants are only asked to respond to 20 images - randomly selected from the 60. Therefore, participants will be asked the 4 questions 20 times in total.
My first instinct was to create 60 blocks containing the 4 questions, with a unique image for each block. Participants could then be randomly diverted to 20 of the 60 blocks.
This is quite laborious, is there another way?
When analysing the data, I will also need to know which image participants received.
Thank you in advance
Question
Randomising graphics/stimulus
+22You can use loop and merge for this. Put all the image url in the loop and merge field and use it in the question. At the bottom of the loop and merge pop up, put present only 20 items randomly.
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