Table 3. Average percentage of correct choices in each of the cognitive tasks according to rearing history, experiment 3.
Orphan | Mother-reared | ||||
Task | Mean | n | Mean | n | Significantly different? |
Intention emulation | 0.21 | 14 | 0.00 | 8 | No |
Social obstacle | 0.15 | 13 | 0.27 | 10 | No |
Gaze-following around barriers | 0.21 | 14 | 0.23 | 13 | No |
Social inhibition | 0.52 | 13 | 0.43 | 13 | No |
Gaze-following | 0.22 | 14 | 0.25 | 14 | No |
Attentional state | 0.20 | 13 | 0.10 | 14 | No |
Intentions | 0.64 | 13 | 0.57 | 12 | No |
Social learning | 0.07 | 14 | 0.00 | 8 | No |
Reputation | 0.56 | 14 | 0.57 | 14 | No |
Object permanence | 0.58 | 12 | 0.68 | 12 | No |
Transposition | 0.44 | 12 | 0.57 | 12 | No |
Relative numbers | 0.72 | 12 | 0.72 | 12 | No |
Tool properties | 0.53 | 12 | 0.63 | 12 | Yes (p = 0.05) |
Tool use | 0.08 | 12 | 0.44 | 9 | No |
The first 9 items are social cognition tasks and the latter 5 are physical cognition tasks.