Hello.
I am currently designing an experimental survey for my master’s thesis using SoSci Survey and I am encountering difficulties with implementing treatment variation through the randomization of images or messages shown to participants.
Here is what I aim to achieve:
I want to randomly assign participants to one of two groups.
Each group should be shown a different version of a promotional image or text block (as a treatment condition).
After viewing the stimulus, all participants should answer the same set of Likert-scale questions related to their perception.
Despite following tutorials, I am not able to:
Correctly link the random generator to the display of images/text.
Ensure that only one image is shown to each participant based on the random assignment.
Verify if the display conditions are being applied properly (e.g., image 1 with code 1, image 2 with code 2).
Could you kindly assist me with:
A step-by-step guide or example for correctly implementing treatment variation using the random generator?
Guidance on how to assign images/text to specific codes and make sure only the corresponding content is displayed?