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Pairwise comparison with images

#1

Hi,

I’m programming on a pairwise comparison experiment with pictures. I want two pictures appearing next to each other on the screen and I want it to be random which of them appears on the left and which on the right.

At the moment I got a routine with two image-stimuli which are drawing the images out of an Excel-File, each image-stimuli draws out of its “own” column in the Excel. So obviously the images appearing left and the ones appearing right are the same for all test subjects.

Is there any manner to make them appear randomly left or right for every test subject? I have no skills in Python so I could only try it to do in Builder so far.

Thanks for help!