Table 1.
Participant Demographics by Group
| AD Age: M (SD) Range |
PDD-NOS Age: M (SD) Range |
ASD-Low MA Age: M (SD) Range |
Difference Between Groups |
||
|---|---|---|---|---|---|
|
| |||||
| Time 1 | 27.09 (4.57) | 25.88 (4.04) | 23.60 (4.509) | F (4, 428) = 3.67, p < .006 | |
| 17.74 – 36.66 | 18.03 – 34.43 | 15.70 – 31.80. | |||
|
| |||||
| Time 2 | 53.27 (9.41) | 51.49 (10.38) | 49.37 (6.48) | ||
| 41.38 – 113.48 | 38.12 – 106.52 | 34.36 – 62.13 | |||
|
| |||||
| AD Frequency (%) | PDD-NOS Frequency (%) | ASD-Low MA Frequency (%) | Difference Between Groups | ||
|
| |||||
| Gender | |||||
|
| |||||
| Male | 93(83.8%) | 65 (78.3%) | 20 (80%) | X2(2, N = 219) = .964, p = .617 | |
|
| |||||
| Female | 18 (16.2%) | 18 (21.7%) | 5 (20%) | ||
|
| |||||
| Total | 111 | 83 | 25 | ||
|
| |||||
| Ethnicity | |||||
|
| |||||
| White | 87(82.1%) | 67(84.8%) | 19(76%) | X2(8, N = 210) = 7.450, p = .490 | |
|
| |||||
| Black | 2(1.9%) | 4(5.1%) | 2(8%) | ||
|
| |||||
| Hispanic/Latino | 9(8.5%) | 5(6.3%) | 3(12%) | ||
|
| |||||
| Asian | 4(3.8%) | 3(3.8%) | 0 | ||
|
| |||||
| Biracial | 4(3.8%) | 0 | 1(4%) | ||
|
| |||||
| Total | 106 | 79 | 25 | ||
|
| |||||
| Maternal Education | |||||
|
| |||||
| No degree | 3 (4.3%) | 2 (3.1%) | 0 | X2(12, N = 154) = 9.675, p = .645 | |
|
| |||||
| High school diploma/GED | 22 (31.4%) | 20 (30.8%) | 11 (57.9%) | ||
|
| |||||
| Vocational/technical degree | 5 (7.1%) | 5 (7.7%) | 0 | ||
|
| |||||
| Associate’s degree | 6 (8.6%) | 6 (9.2%) | 0 | ||
|
| |||||
| Bachelor’s degree | 20 (28.6%) | 19 (29.2%) | 4 (21.1%) | ||
|
| |||||
| Master’s degree | 11(15.7%) | 12(18.5%) | 4 (21.1%) | ||
|
| |||||
| Doctoral degree | 3(4.3%) | 1(1.5%) | 0 | ||
|
| |||||
| Total | 70 | 65 | 19 | ||
|
| |||||
| Annual Income | |||||
|
| |||||
| <$10,000 | 6 (9.5%) | 1(1.6%) | 0 | X2(20, N = 143) = 23.166, p = .281 | |
|
| |||||
| $10,000–$20,000 | 10 (15.9%) | 13(20.6%) | 2 (11.8%) | ||
|
| |||||
| $20,000–$30,000 | 4 (6.3%) | 3(4.8%) | 0 | ||
|
| |||||
| $30,000–$40,000 | 3(4.8%) | 5(7.9%) | 4 (23.5%) | ||
|
| |||||
| $40,000–$50,000 | 6 (9.5%) | 7(11.1%) | 2 (11.8%) | ||
|
| |||||
| $50,000–$60,000 | 4(6.3%) | 6(9.5%) | 2 (11.8%) | ||
|
| |||||
| $60,000–$70,000 | 6(9.5%) | 6(9.5%) | 0 | ||
|
| |||||
| $70,000–$80,000 | 7(11.1%) | 7(11.1%) | 3(17.6%) | ||
|
| |||||
| $80,000–$90,000 | 7(11.1%) | 3(4.8%) | 2 (11.8%) | ||
|
| |||||
| $90,000–$100,000 | 5(7.9%) | 2(3.2%) | 2(11.8%) | ||
|
| |||||
| >$100,000 | 5 (7.9%) | 10(15.9%) | 0 | ||
|
| |||||
| Total | 63 | 63 | 17 | ||
Note. Age is presented in months.