However, it appears that this relationship may only be true when ASD symptom severity is measured in the absence of parental reports of additional child behaviour problems. (link.springer.com)
The official statistics are provided via inspection by a dental health professional rather than by parental report. (gov.scot)
They used parental reports on the child's experience of regular nightmares between the ages of 2 and 9. (sciencedaily.com)