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Overall engagement values and normalized engagement changes for the three participants, with the robot in a single role versus mixed roles (L: Leader, F: Follower, M: Mixed). A gain in engagement occurs only for Participant 2.
| Participant | Overall engagement, eng | Normalized change, c | |||
|---|---|---|---|---|---|
| eng pre (L) | eng pre (F) | eng post (M) | eng pre (L) vs eng post (M) | eng pre (F) vs eng post (M) | |
| 1 | 2.250 | 2.375 | 1.500 | −0.500 | −0.583 |
| 2 | 1.500 | 2.834 | 3.000 | 1.000 | 1.000 |
| 3 | 3.000 | 2.711 | 1.750 | −0.7143 | −0.549 |
