Millisecond Forums

Specifically, I have a group of trials from "1(a-l)" to "6(a-l)" (72 in total) and another group of trials from "7(a-l)" to "12(a-l)" (another 72 in total). I want to randomly select one stimuli from the first group and then randomly select one trial from the second group, going back and forth between the groups until all stimuli have been used.