[open] Pictures to pool
I'm conducting an experiment which includes about 400 pictures divided into two groups.
The pictures on the first group suppose to appear throughout the experiment randomly and without repetition (i.e. a pic that has been presented from this group will not be presented again), and the pictures from the 2nd group will be presented randomly and each one of them will be shown twice throughout the experiment. it would be best if I could place two folders each containing one group's pictures into the pool, but since it's impossible (cannot save the project while folders are in the pool) my questions are :
- Whether it's possible to program opensesame to approach a certain folder (inside or outside the pool) whenever it encounters a certain condition and each time pick a photo from there, without my having to drag 400 pics into the pool and give each a different name ?
- What instructions should I use to guide it to pick randomly without repetition from one group's folder, and randomly with 1 repetition per photo on the other group's folder ?
thanks in advance for supporting