Table 1.
Griffiths and WISC-III mean quotients at 1 and 7 years.
| N = 99 | Mean (SD) | Range | Number (%) < 1 SD | Number (%) < 2 SD |
|---|---|---|---|---|
| Griffiths Scales 1 year | ||||
| General Quotient | 94.2 (9.5) | 65-113 | 21 (21.2) | 4 (4.1) |
| Locomotor | 88.5 (11.1) | 58-108 | 29 (29.3) | 6 (6.1) |
| Personal-Social | 92.7 (10.5) | 60-113 | 17 (17.2) | 3 (3.0) |
| Language | 98.5 (9.2) | 78-122 | 6 (6.1) | – |
| Eye and Hand Coordination | 92.9 (10.8) | 60-117 | 20 (20.2) | 1 (1.0) |
| Performance | 94.2 (12.5) | 55-118 | 17 (17.2) | 3 (3.0) |
| WISC-III 7 years | ||||
| Full Scale IQ | 103.0 (15.7) | 52-139 | 11 (11.1) | 3 (3.0) |
| Verbal IQ | 104.8 (15.9) | 51-137 | 10 (10.1) | 4 (4.0) |
| Performance IQ | 100.3 (14.4) | 62-148 | 10 (10.1) | 2 (2.0) |