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Group: Forum Members
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Visits: 170
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Good morning:
I am having difficulties in randomizing trial type across the block.
In my experiment (script attached, thanks to Mr. Dave for supporting with this script earlier), I have 4 trial type (namely: "odd/odd", "even/even", "odd/even", "even/odd") but extended to 16 (and can be more in future) for randomizing across the blocks (currently, there are 64 trials in the block). I have also adjusted relevant scripts. It works fine. But the problem is that often “leftitemnumber” and “rightitemnumber” pick up the same values from the list (image attached)
I would like to avoid this that “leftitemnumber” shouldn’t be the same as “rightitemnumber”. There may be some way to put /not in list element - but I not sure how to do that.
Would highly appreciate it your kind help.
Thanks
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