I'm trying to use PROC PLAN to assist with subject assignment for a study. Each of 60 subjects will wear 1 of 6 conditions while completing each of 2 tasks. I want to control for order effects with the tasks. I would like the first 30 subjects to be balanced across the 6 conditions and task orders (as much as possible) so that I can do an initial look at the data.
Is PROC PLAN appropriate, or is there another approach recommended?
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