Table 2.
Summary of variation between sites with respect to diagnostic scales and continuous demographic and behavior characteristics
| Range across Site | Variance | ICC | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Min | Max | Mean | SD | Overall Mean |
Overall SD |
Within | Between | Between/ Total |
|
|
|
|||||||||
| Chronological Age | 48~51 | 209~216 | 101.8~117.3 | 38.5~45 | 107.2 | 42.1 | 1770.0 | 4.6 | 0.003 |
| Verbal IQ | |||||||||
| no control | 5~13 | 138~167 | 72.4~85.4 | 27.5~33.4 | 79.3 | 30.5 | 918.4 | 13.1 | 0.014 |
| control for VMA | 435.9 | 5.5 | 0.013 | ||||||
| Nonverbal IQ | |||||||||
| no control | 9~30 | 133~161 | 79.7~89.8 | 22~27.7 | 86.1 | 25.3 | 635.1 | 4.7 | 0.007 |
| control for NVMA | 375.6 | 3.7 | 0.010 | ||||||
| Autism Diagnostic Interview-Revised | |||||||||
| Social Interaction | 8~9 | 30~30 | 18.5~22.6 | 5.1~6.1 | 20.1 | 5.7 | 31.8 | 1.4 | 0.043 |
| Communication - Verbal | 6~8 | 24~26 | 15.6~18.4 | 3.5~4.8 | 16.4 | 4.2 | 17.5 | 0.7 | 0.036 |
| Communication - Nonverbal | 0~3 | 14~14 | 8.2~10.3 | 3.1~3.6 | 9.1 | 3.4 | 11.5 | 0.5 | 0.038 |
| Restricted/Repetitive Behavior | 0~2 | 12~12 | 5.8~7.1 | 2.2~2.7 | 6.5 | 2.5 | 6.1 | 0.2 | 0.032 |
| Autism Diagnostic Observation Schedule | |||||||||
| Calibrated Severity Score | 4~4 | 10~10 | 6.8~8.1 | 1.6~1.8 | 7.4 | 1.7 | 2.8 | 0.1 | 0.041 |
| Social+Communication | 4~7 | 22~24 | 12.1~14.7 | 3.8~4.6 | 13.3 | 4.2 | 17.4 | 0.4 | 0.022 |
| Social Affect | 3~6 | 19~20 | 10.3~12.7 | 3.7~4.3 | 11.0 | 4.0 | 16.0 | 0.3 | 0.021 |
| Restricted/Repetitive Behavior | 0~0 | 8~8 | 3.4~4.5 | 1.8~2.3 | 3.9 | 2.0 | 4.1 | 0.1 | 0.026 |
| Vineland-II Composite | 27~52 | 95~115 | 68.9~75.9 | 9.3~14.4 | 73.8 | 11.7 | 134.0 | 3.5 | 0.026 |
| Aberrant Behavior Checklist | |||||||||
| Irritability | 0~0 | 28~42 | 8.4~13.1 | 6.8~9.2 | 11.3 | 8.6 | 72.7 | 1.6 | 0.022 |
| Hyperactivity | 0~1 | 37~48 | 13.1~18 | 8.9~11 | 16.5 | 10.5 | 107.3 | 2.4 | 0.022 |
| Sample Size | 97 | 229 | 175 | 38 | |||||