I have a problem which can be easily solved (I believe)- but I am unable to do so.
For my experiment, there are 4 practice items and 36 critical items following. I would like to randomize the trials – but I’d like to keep 4 practice item constant. I’d be great if I can randomize practice items within “Practice” items and 36 critical items within “Critical” items
Both practice items and critical items are within the same csv file – so they are both under “Experiment” label. So now I understand that if I have two separate .csv files (one for practice items and one for critical items) – then the problem will be solved.
I just wonder is there a way to do the randomization while keeping them within the same .csv and under “Experiment” label?