Hello,
I am trying to set up my experiment so that a participant randomly gets assigned to one of four groups. The order of the stimuli is different for each group so i have different excel files for each group. I have set up the outer loop to go to an excel sheet to randomly select a group (conditions) sheet but the problem i am running into is that it is going through all 4 groups and i only want it to show one excel file per participant (not all 4 in a random order). I have it set to repeat once but i am still running into the problem where it is going through all 4 condition excel files. Is it because my outer loop is not set up correctly? This experiment needs to be uploaded to pavlova as well. Any information would be greatly appreciated.
Hello
I am not quite sure that I have understood the way you have set up the randomisation. If I interpreted it correctly, you could use the Selected rows option. Setting it to 1 would select the first row of your Excel file.
Best wishes, jens
The simplest modification based on what you’ve done so far would be to add a code component to one of your routines inside the condition_files loop and add the code condition_files.finished=True so that the loop only runs once instead of once per condition.
This should randomly select a group, which means that your group sizes won’t be equal. For that you need counterbalancing (either with a counterbalance routine or the VESPR Study Portal or Participant IDs for Pavlovia). I would currently recommend waiting until the 2024.2.0 release before using the counterbalance routine for 4 groups online. I’ve had and seen some issues with it.
