Table 2. Behavioural measures.
Mean and standard deviation (in parentheses) measures of accuracy (percentage of correct responses) and speed (reaction times) for all groups and conditions.
| Accuracy (%) | Mean RTs (ms) | |||||||
|---|---|---|---|---|---|---|---|---|
| Group | T-Short | T-Long | N-Short | N-Long | T-Short | T-Long | N-Short | N-Long |
| 6–7 | 93.4(1.1) | 91.5(1.7) | 95.7(1) | 92.2(1.4) | 490(12) | 491(12) | 562(15) | 501(13) |
| 8–9 | 94.5(1.8) | 96.7(0.9) | 98.7(2) | 96.5(0.9) | 433(13) | 401(10) | 481(12) | 422(11) |
| 10–11 | 95.2(0.9) | 96.6(0.9) | 98.6(0.5) | 96.8(0.7) | 390(11) | 359(11) | 433(13) | 379(12) |
| Adults | 95.7(1.1) | 95.6(1.7) | 99(0.5) | 94.5(1.8) | 313(12) | 291(8) | 355(10) | 306(10) |
Note that the analyses of variance reported in the text were performed using RT log-transformed data whereas the in the table we report raw RT data for reasons of clarity.