Measure | ASD | TD | Test statistic (t or X2) | p-value |
---|---|---|---|---|
Age (years) | 4.57 (0.82), N = 60 | 4.61 (0.47), N = 17 | 8.199 | 0.833 |
Sex | Â | Â | 10.646 | 0.001** |
 Male | 51 | 8 |  |  |
 Female | 9 | 9 |  |  |
Autism Diagnostic Observation Schedule (ADOS) | ||||
 Social Affect | 13.07 (3.29), N = 60 |  |  |  |
 Restricted Repetitive Behaviour | 4.73 (1.74), N = 60 |  |  |  |
 Calibrated Severity Score | 7.33 (1.14), N = 60 |  |  |  |
Vineland Adaptive Behaviour Scales—(VABS-II) | ||||
 Communication, Standard Score (SS) | 69.69 (19.07), N = 52 |  |  |  |
 Daily living, SS | 69.38 (16.86), N = 52 |  |  |  |
 Socialization, SS | 67.27 (13.02), N = 52 |  |  |  |
 Motor Skills, SS | 76.08 (14.66), N = 52 |  |  |  |
Mullen Scales of Early Learning (MSEL) | ||||
 Visual reception, Age Equivalent (AE) | 30.10 (17.97), N = 52 | 53.88 (8.62), N = 17 | 5.25 |  < 0.001** |
 Fine motor, AE | 30.5 (13.09), N = 52 | 53.47 (9.44), N = 17 | 6.68 |  < 0.001** |
 Receptive language, AE | 25.06 (16.72), N = 52 | 46.59 (9.62), N = 17 | 5.03 |  < 0.001** |
 Expressive language, AE | 25.10 (14.39), N = 52 | 43.65 (7.92), N = 17 | 5.05 |  < 0.001** |
 Verbal Developmental Quotient | 45.53 (24.82), N = 51 | 82.08 (15.85), N = 17 | 5.68 | <0.001** |
 Non-Verbal Developmental Quotient | 55.69 (25.24), N = 51 | 97.72 (17.27), N = 17 | 6.37 | <0.001** |
Social Communication Questionnaire (SCQ) | 0.54 (0.17), N = 41 | 0.17 (0.11), N = 16 | -8.04 |  < 0.001** |