Table 1.

All possible permutations for the roadrunner game.

Permutation	Order of levels of difficulty	Participants (n)
0	0, 1, 2, 0, 1, 2	10
1	0, 1, 2, 0, 2, 1	10
2	0, 1, 2, 1, 2, 0	10
3	0, 1, 2, 1, 0, 2	10
4	0, 2, 1, 0, 1, 2	10
5	0, 2, 1, 0, 2, 1	9
6	0, 2, 1, 2, 0, 1	10
7	0, 2, 1, 2, 1, 0	10
8	0, 1, 0, 2, 1, 2	7
9	0, 2, 0, 1, 2, 1	9