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I am creating a visual search task with two different trial types - "old" and "new" ones:
"old" trials need to create 12 fixed search displays - with 11 distractors and 1 target picture, which will be repeated in every one of 16 blocks.
"new" trials need to create semi-random search displays - the distractors need to be in random locations, but the target needs to be in 12 fixed locations that are different to the 12 fixed locations of the "old" trials.
This task has 48 possible positions for the pictures (8x6 invisible grid).
How can I do this so that it creates random "old"/"new" configurations for each new participant?
I have attached my script so far.
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