I have 40 question groups in my survey, which I would like to present in 2 blocks. I would like the first 20 groups to be presented in places 1-20 in a randomized order, and then the last 20 groups to be presented randomly in places 21-40.
I have given the the 2 blocks different Randomization Group Codes (rand1 and rand2), however question groups from the second block are appearing in the first 20 places.
If there a way to randomize within certain orders?
For example:
(BLOCK 1)
15,1,2,20,4,6,8,9,10,5,11,12,17,13,14,3,16,18,7,19
(BLOCK 2)
23,32,21,22,25,39,27,29,30,34,31,33,35,28,36,26,37,38,40,24
Thanks!
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