Table 1.
Descriptive statistics of measures
| Mean (SD) | Range | ||
|---|---|---|---|
| IQ measures | |||
| FSIQ | 84.3 (18.0) | 50–119 | |
| VIQ | 80.8 (18.0) | 55–120 | |
| PIQ | 90.4 (18.6) | 53–126 | |
| EF indicators | |||
| Card sort task (98/100)a | 7.2 (6.6) | 1–36 | |
| Luria Hand Game (97/100)b | 2.8 (3.3) | 0–15 | |
| Trail making (88/100)a | 63.4 (44.0) | 13.4–257.1 | |
| Planning/drawing (98/100)a, b | 2.4 (1.7) | 0–6 | |
| Opposite Worlds (98/100)a, b | 8.4 (7.5) | −3.7 – 47.4 | |
| Numbers (99/100)a, b | 7.3 (2.5) | 0–12 | |
| ToM indicators | |||
| RME (94/100)b | 14.0 (4.4) | 6–25 | |
| Penny hiding gameb | 2.3 (2.7) | 0–14 | |
| Strange stories (88/100)b | 4.6 (2.1) | 0–8 | |
| Animated triangle (87/100)a, b | 2.9 (0.9) | 0–4.75 | |
| False belief (99/100)b | 3.3 (2.4) | 0–8 | |
| ADHD symptom indicators | |||
| Parent SDQ hyperactivity (93/100)a | 5.8 (2.5) | 0–10 | |
| Teacher SDQ hyperactivity (85/100) | 5.5 (2.4) | 1–10 | |
| Parent PONS ADHD (89/100)a | 10.7 (6.6) | 0–27 | |
| DSM-IV ADHD symptoms (73/100) | 6.0 (3.6) | 0–14 | |
| ASD symptom indicators | |||
| Parent SRS total raw score (92/100) | 92.5 (29.3) | 21–153 | |
| ADI-R total (99/100) | 21.5 (7.7) | 5–41 | |
| ADOS total | 11.6 (6.1) | 1–27 | |
Notes. Descriptive statistics reported here are based on raw data
Abbreviations: FSIQ Full Scale IQ, VIQ Verbal IQ, PIQ Performance IQ, RME Reading the Mind in the Eye Tasks, SDQ Strengths and Difficulties Questionnaire, PONS Profile of Neuropsychiatric Symptoms, SRS Social Responsiveness Scale, ADI-R Autism Diagnostic Interview-Revised, ADOS Autism Diagnostic Observation Schedule
aBox-Cox transformed during analyses
bReversed scores on this table