Table 1.
Summary of Participant Characteristics
| Characteristic | AUT | PDD-NOS | DD | TD |
|---|---|---|---|---|
| Sample size (n) | 125 | 42 | 46 | 31 |
| Age at RVI (Months) (M, SD) | 48.6a (16.9) | 48.0a (15.7) | 43.3a (11.5) | 52.4a (17.8) |
| Males (n, %) | 104 (83) | 35 (83) | 33 (72) | 22 (71) |
| Race (%) | ||||
| Caucasian | 68 | 62 | 57 | 87 |
| African American | 22 | 14 | 15 | 7 |
| Asian | 5 | 2 | 11 | 3 |
| Other | 6 | 21 | 15 | 3 |
| Mother's Education (%) | ||||
| Graduate/Professional Degree | 31 | 41 | 36 | 63 |
| Some college | 57 | 51 | 56 | 37 |
| High school diploma | 12 | 5 | 9 | 0 |
| Less than High school diploma | 0 | 3 | 0 | 0 |
| Cognitive (M, SD) | ||||
| Full DQ | 50.3a (17.5) | 72.5b (19.9) | 63.2b (17.7) | 106.7c (10.9) |
| Nonverbal DQ | 59.3a (18.0) | 77.1b (18.9) | 67.6b (20.3) | 110.5c (14.4) |
| Verbal DQ | 41.0a (18.7) | 67.9b (23.9) | 58.9b (18.2) | 102.9c (12.2) |
Note. Means in the same row with different subscripts differ significantly at p < .05 on Tukey's HSD post-hoc comparison. RVI=Regression Validation Interview.