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Lab K. An exercise in experimental design and implementation. To make a Latin square…. Create a random order of the levels, (e.g. BACD for a four-level IV) Sequentially number the levels in this random order starting with 1. (e.g. B=1, A=2, C=3 and D=4)
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Lab K An exercise in experimental design and implementation
To make a Latin square… • Create a random order of the levels, (e.g. BACD for a four-level IV) • Sequentially number the levels in this random order starting with 1. (e.g. B=1, A=2, C=3 and D=4) • To create the first order in the Latin square, put the last number/level in the 3rd position, (e.g. 1, 2, 4, 3). If we had more than four levels, N say, then every subsequent unevenly numbered position (e.g. 5, 7, and so on) would have one less than the previous unevenly numbered position as shown in the following table.
Labeling of the treatment levels in the random order 1 = C 2 = D 3 = B 4 = A Latin Square of labels Latin square of treatments
