Table 1.
Mean accuracy rates in % (and Standard Deviations) during the first and the last two familiarization trials (Fam 12, Fam78) and the test trials (first test trial in experiment 1 and first two test trials in experiment 2.
| Experimental phase | Accuracy rate | Age |
||||||
|---|---|---|---|---|---|---|---|---|
| Experiment 1 |
Experiment 2 |
|||||||
| 9 Months | All ages | 9 Months | 12 Months | 24 Months | 36 Months | Adults | ||
| Fam 12 | Goal-related | 47.9 (8.8) | 40.3 (8.0) | 47.8 (8.8) | 39.6 (8.0) | 29.2 (6.7) | 54.2 (7.9) | 30.4 (7.8) |
| Non-goal-related | 25.0 (6.7) | 31.8(7.2) | 30.4 (6.6) | 37.5 (6.9) | 27.1 (6.0) | 31.3(7.9) | 32.6(8.8) | |
| Fam78 | Goal-related | 47.8 (8.2) | 53.9 (8.4) | 47.9 (9.3) | 52.1 (8.2) | 50.0(8.0) | 62.2 (8.2) | 54.2(8.5) |
| Non-goal-related | 23.9 (6.6) | 18.9(6.3) | 25.0 (7.4) | 16.7(5.8) | 12.5 (5.4) | 19.6 (6.6) | 20.8 (6.7) | |
| Test | Identity-related | 25.0 (9.0) | 42.2 (8.5) | 25.0 (7.4) | 27.1 (8.0) | 41.7(8.9) | 58.3 (7.8) | 58.7(8.3) |
| Location-related | 37.5(10.1) | 34.3 (8.5) | 47.9 (8.8) | 41.7(9.2) | 39.6 (9.0) | 27.1 (7.4) | 15.2(5.6) | |