Counterbalancing stimulus positions
I'm trying to present two pictures simultaneously, counterbalancing their positions across participants.
In the trial, the two pictures are presented simultaneously after a fixation. One is presented in left side, the other is in right side.
Each picture should be presented just once, so half of participants will see the picture1 in left side, the other half will do in right side. Further, half of pictures are target stimuli and the other half are distracter stimuli, and they should be always paired. So participants see the target in either left or right side.
I was able to make just the trial sequence and present stimuli by
Now I think about using
balanced_latin_squarefunction or Expyriment's example code of simon task.
Are there any better ways or suggestions?