Table 2.
Demographic characteristics and Social Responsiveness Scale-2 scores for the individuals with autism spectrum disorder and typically developing controls by age group
| Autism spectrum disorder | Typically developing controls | |||||||
|---|---|---|---|---|---|---|---|---|
| 4–8.99 (n = 91) | 9–11.99 (n = 96) | 12–16.99 (n = 85) | 17+ (n = 52) | 4–8.99 (n = 95) | 9–11.99 (n = 84) | 12–16.99 (n = 150) | 17+ (n = 109) | |
| Sex (% male) | 82.4 | 78.1 | 85.9 | 86.5 | 37.9 | 51.2 | 51.3 | 54.1 |
| Age | 7.60 (1.07) | 10.43 (0.85) | 13.83 (1.35) | 19.86 (2.83) | 6.99 (1.14) | 10.63 (0.88) | 14.60 (1.44) | 20.77 (3.09) |
| FSIQb | 101.12 (18.96) | 109.14 (19.05) | 106.53 (17.24) | 110.69 (14.78) | 109.68 (13.44) | 115.46 (13.62) | 114.03 (11.58) | 112.75 (11.58) |
| Maternal education (% with some college or more) | 84.1 | 76.67 | 67.1 | 77.1 | 69.6 | 73.2 | 64.3 | 62.5 |
| SRS-2 SCIa | 68.59 (20.26) | 75.48 (19.86) | 76.20 (22.95) | 76.27 (22.48) | 23.59 (12.51) | 22.07 (12.44) | 17.31 (11.30) | 16.88 (11.51) |
| SRS-2 RRBa | 16.93 (6.66) | 17.84 (6.58) | 16.73 (7.11) | 16.12 (5.93) | 2.55 (3.13) | 2.46 (2.97) | 2.02 (2.70) | 1.73 (2.53) |
FSIQ full scale intelligence quotient, SRS Social Responsiveness Scale-Second Edition, SCI social communication index, RRB restricted repetitive behaviors
a
Raw/unstandardized scores
b
There were significant differences in FSIQ across the age groups for both individuals with autism spectrum disorder and typically developing controls