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I am attempting to create a dot probe task (patterned off of the script for Miller et al., 2010 available in the Inquisit Task Library) with four possible trial types, each of which has 32 possible pairings of words. But, when I run this script it produces the correct number of each trial type, but it does not select equally from the 32 possible word pairings (so, e.g., in a particular trial type I might get 3 trials with one word pairing and 1 trial with another word pairing). In other scripts I've used the counter element to equalize presentation of stimuli, but using that element doesn't seem to work in this script, I assume because there are lots of other dependencies (e.g., word presentation is also balanced in terms of which side of the screen a word appears on and which side of the screen a target appears on) that interfere with the counter. I'm hoping someone has dealt with a similar issue in the past and might be able to offer some assistance. I've uploaded the full script, in zip format, for reference. Many thanks in advance and apologies if, as I suspect, there is an easy solution to this issue with which I am just not familiar!
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