Hello, I’m trying to create a cognitive psychology experiment (one-back task). I have several pictures as stimuli. I need to present some of them in a specific order (for instance a specific stimulus supposed to be in 15th or 17th place) and the other stimuli supposed to change randomly across participants. I had trouble doing it. PsychoPy present pictures in a random order but does it for every picture. I have to organize them as some pieces of them randomizing separately.
Some of the pictures also supposed to come after one another. I created an excel file, but again, these orders do not change appropriately as they have to, across participants.
I assume that there are some ways to organize these stimuli in the builder but I have no idea how to do it. I hope I explained it clearly? Can you please help me?