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| Preference rankings | External | Neutral | Mirror | Internal | |
|---|---|---|---|---|---|
| Single-joint | |||||
| 1st | 12 | 3 | 5 | 5 | |
| 2nd | 6 | 5 | 8 | 6 | |
| 3rd | 7 | 5 | 6 | 7 | |
| 4th | 0 | 12 | 6 | 7 | |
| Multi-joint | |||||
| 1st | 15 | 2 | 5 | 3 | |
| 2nd | 3 | 9 | 3 | 10 | |
| 3rd | 5 | 7 | 7 | 6 | |
| 4th | 2 | 7 | 10 | 6 | |
Participants’ preferences of the four instructions in both experiments.
