Table 3.
Principal components analysis of social responsiveness scale data
| Component | ASD, non-ASD, and TD groups (n = 475) | ||
|---|---|---|---|
| Total | % of variance | Cumulative% | |
| 1 | 18.928 | 29.120 | 29.120 | 
| 2 | 3.851 | 5.925 | 35.045 | 
| 3 | 3.152 | 4.850 | 39.895 | 
| 4 | 1.926 | 2.963 | 42.858 | 
| 5 | 1.701 | 2.616 | 45.474 | 
ASD, autism spectrum disorders; TD, typical development.
The clinical sample consisted of participants with ASD (n = 257) and non-ASD (n = 157).