Random subset of images
I hope someone can help me.
I have two very simple experiments that are pretty similar. Although I get it to work, I do not get it to work with a subset, so I'm probably doing something wrong.
I have a list of 30 images. In each trial I want to show a random subset of 12 images
In Study 1, I want to present them sequentially, In study 2 simultaneously on the screen.
After each trial, I want to have participants answer 3 questions.
How do I get a random subset of 12 for each trial? Its ok if there are actually some duplicate images.