Hi,
I'm posting again my question from a few days ago, because there were no replies and I'm still not sure how to continue with my analysis.
I have four conditions at first level: taskA-conditionA, taskA-conditionB, taskB-conditionA and taskB-conditionB. I was wondering if I should weight my contrasts by the number of events in each condition. For example, for testing the taskA-conditionA effect should I use [1 0 0 0] (no weighting) or should I weight this contrast by the number of events in taskA-conditionA?
If I have 11 trials in taskA-conditionA, 10 trials in taskA-conditionB, 14 trials in taskB-conditionA and 11 trials taskB-conditionB, how can I do the weighting properly?
Thank you.
Best regards,
Michael
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