As far as I understand, one can randomize all events and “exclude the first one” but this option does not seem to be available for the trials within a block.
Why do I want this? To play an audiofile throughout one block, starting with the first trial, ending with the last response of the block. So the first trial should be at a fixed position to start the audiofile under the condition to “keep playing until the block ends” - as available in superlab.
Because if I attach the audiofile to each trial (so it does not matter which one starts first) the experiment stops after a few trials and superlab shuts down with an error.
Starting the audiofile prior to the block in a different block would work, because there is the option of “keep playing until the audiofile ends”. BUT processing time of the experimental block depends on the speed of the participant and so the length of time needed for the block varies, which means the sound file could be playing for longer or not long enough.
Did I miss the option of putting only one trial to a fixed position and randomize all other ones? Or do you have any other idea how to solve this problem?
Tanks for helping!