|
| Number of questions | Number of items | Mean Accuracy rate pre-test | Mean Accuracy rate post-test |
| Mnemonic 1 (at, on, in) | 9 | 360 | 0.65 | 0.83 |
| Mnemonic 2 (for, in) | 6 | 240 | 0.65 | 0.77 |
| Mnemonic 3 (since, until) | 6 | 240 | 0.68 | 0.84 |
| Mnemonic 4 (from, to) | 3 | 120 | 0.33 | 0.73 |
| Exceptional cases for Mnemonic 1 | 5 | 200 | 0.47 | 0.69 |