| 变量 | 基线期(n = 31) | 3个月(n = 30) | 6个月(n = 26) | 12个月(n = 24) | |
| FIQ | 102.2 ± 7.3 | 103.3 ± 6.6 | 103.5 ± 6.9 | 103.8 ± 6.9 | |
| VIQ | 102.1 ± 7.7 | 102.9 ± 6.0 | 102.9 ± 6.7 | 103.3 ± 5.9 | |
| PIQ | 102.5 ± 7.9 | 102.9 ± 7.4 | 102.6 ± 7.0 | 102.5 ± 5.5 | |
| 言语测验 | |||||
| 常识 | 10.3 ± 1.5 | 10.4 ± 1.1 | 10.4 ± 1.2 | 10.5 ± 1.2 | |
| 类同 | 10.5 ± 1.3 | 10.7 ± 1.1 | 10.7 ± 1.0 | 10.7 ± 1.3 | |
| 算术 | 10.5 ± 1.5 | 10.5 ± 1.2 | 10.6 ± 1.2 | 10.6 ± 1.4 | |
| 词汇 | 10.4 ± 1.4 | 10.6 ± 1.5 | 10.8 ± 1.1 | 10.9 ± 1.4★ | |
| 理解 | 10.8 ± 1.8 | 10.8 ± 1.4 | 10.8 ± 1.4 | 10.8 ± 1.0 | |
| 数字广度* | 10.9 ± 1.6 | 11.0 ± 1.5 | 11.3 ± 1.5 | 11.7 ± 1.4★ | |
| 操作测验 | |||||
| 填图 | 9.5 ± 1.3 | 9.8 ± 1.2 | 9.8 ± 0.9 | 9.9 ± 1.0 | |
| 图片排列 | 9.7 ± 1.4 | 9.7 ± 1.0 | 9.9 ± 0.9 | 9.9 ± 1.1 | |
| 积木 | 11.5 ± 1.9 | 11.3 ± 1.4 | 11.3 ± 1.5 | 11.6 ± 1.5 | |
| 拼图 | 11.3 ± 1.9 | 11.4 ± 1.6 | 11.5 ± 1.5 | 11.4 ± 1.6 | |
| 译码 | 10.6 ± 1.6 | 10.6 ± 1.6 | 10.7 ± 1.4 | 10.9 ± 1.3 | |
| 迷津* | 11.4 ± 1.9 | 11.4 ± 1.5 | 11.4 ± 1.6 | 11.5 ± 1.6 | |