Hello,

I'm trying to randomize multiple items in my experiment and they keep being mixed together instead. Basically, I have 5 video files which I want randomized, and 5 questionnaires that I want randomized; but I need the order to stay: video, questionnaire, video, questions, etc.

I also have two conditions, so I've assigned the different sets different numbers within each condition. So condition one's videos are all numbered 1 in BGR and it's questionnaires are numbered 2 and conditions two's videos are 3 and questionnaires are 4.

What is happening instead of all the 1s, 2s, 3s, and 4s randomizing separately is that 1s and 2s are mixing together and 3 and 4s are mixing together.

How do I get MediaLab to keep items with different BGR numbers separated but presented in random orders?