Hi all,
I think I have asked a very similar question before, so I apologize. I can't find the previous answer.
In one of my studies I am using an evaluative conditioning manipulation and the idea is that the USs should be sampled without replacement until the entire set has been exhausted. I thought that the exRandom sampling should be able to achieve this (rows 135 and 144). However, what I see in the data is that stimuli get repeated before the entire set has been used (e.g, n4.jpg appears both on the first and third trials). What am I doing wrong?
Thanks so much!
—Benedek
