Table 1 Mean accuracy and reaction time for addition task, and reaction time for subtraction task.
| Â | Rule | Tie | Small | Large |
|---|---|---|---|---|
Addition: Accuracy (%) | Â | Â | Â | Â |
Pre | 100 (0) | 76 (5) | 92 (2) | 61 (10) |
Post | 97 (3) | 88 (5) | 89 (2) | 64 (9) |
   Reaction Time (msec) |  |  |  |  |
Pre | 1995 (245) | 2974 (293) | 3172 (365) | 6892 (347) |
Post | 1694 (229) | 2908 (618) | 3244 (368) | 6427 (454) |
Subtraction: Reaction Time (msec) | Â | Â | Â | Â |
Pre | 2564 (172) | Â | 6032 (512) | 8010 (834) |
Post | 2428 (179) | Â | 6724 (725) | 8575 (1049) |