Table 2.
Sample characteristics and t tests: groups matched on verbal developmental age
| ASD |
Non-ASD |
t | df | p < | |||||
|---|---|---|---|---|---|---|---|---|---|
| N | Mean | SD | N | Mean | SD | ||||
| Age (years-months) | 66 | 2.23 | 0.55 | 40 | 2.03 | 0.56 | 1.76 | 104 | NS |
| Rec Lan T* | 66 | 28.39 | 14.42 | 40 | 32.15 | 13.86 | 1.31 | 104 | NS |
| Exp Lan T* | 66 | 28.48 | 11.27 | 40 | 29.15 | 9.06 | 0.316 | 104 | NS |
| Mean Lan AE** | 66 | 14.36 | 8.47 | 40 | 14.75 | 7.06 | 0.242 | 104 | NS |
| ADOS Comm*** | 66 | 4.94 | 1.41 | 39 | 2.36 | 1.87 | 7.99 | 103 | 0.000 |
| ADOS social | 66 | 10.62 | 3.01 | 39 | 5.03 | 3.57 | 8.57 | 103 | 0.000 |
| ADOS combined | 66 | 15.56 | 3.98 | 39 | 7.38 | 5.08 | 9.15 | 103 | 0.000 |
*
Receptive and Expressive Language T scores on the Mullen (Mean = 50, SD = 10)
**
Mean Language Developmental Age Equivalent corresponding to the averaging of the age equivalents of the receptive and expressive domains of the Mullen (in months)
***
ADOS scores Module 1: the higher the score the more atypical the child’s presentation in the given domain (Communication, Social, and Both combined)