Table 2.
Wechsler scale (WISC-III) subtest results of 23 patients.
| Number of patients with scores below minus 2 SD | mean | |
| Full scale IQ | 2/23 | 89.1 |
| Verbal IQ | 0/23 | 94.0 |
| Performance IQ | 6/23 | 86.2 |
| Verbal comprehension | 2/22 | 94.5 |
| Perceptive organization | 1/22 | 92.1 |
| Speed | 4/22 | 86.6 |
| Verbal subtests | ||
| Information | 2/23 | 8.4 |
| Similarities | 0/23 | 9.3 |
| Arithmetics | 0/23 | 9.8 |
| Vocabulary | 0/23 | 9.1 |
| Comprehension | 1/23 | 9.4 |
| Memory | 4/22 | 8.0 |
| Performance subtests | ||
| Picture completion | 3/23 | 9.4 |
| Codes | 6/22 | 5.9 |
| Picture arrangement | 2/22 | 8.2 |
| Block design | 2/22 | 8.5 |
| Object assembly | 5/21 | 7.9 |
| Mazes | 1/22 | 9.6 |
| Symbols | 3/22 | 7.9 |
SD = standard deviation.
IQ = Intellectual Quotient