Standard score | Grade | The overall distribution ratio of the national norm (%) | Actual distribution ratio (%) |
More than 222 | excellent | 7 | 6.4 |
221 - 192 | middling above | 24 | 23.4 |
191 - 158 | middling | 38 | 38 |
157 - 127 | middling below | 24 | 25.2 |
Below 125 | poor | 7 | 7 |
— | — | 100 | 100 |