Title: Do maternal attributions play a role in the acceptability of behavioural interventions for problem behaviour in children with autism spectrum disorders?

The present study explored the relationship between parental attributions and treatment acceptability of behavioural interventions for problem behaviour in children with autism spectrum disorders (ASD). Mothers of children with ASD aged 3 to 9 years (N = 139) completed survey measures that assessed demographics, parental attributions, treatment acceptability of parent-focused and child-focused behavioural interventions, severity of their child’s disruptive behaviour, and severity of their child’s ASD symptoms. The results showed that parental attributions of parent-referent stability, but not the other attributional dimensions, negatively predicted treatment acceptability of a parent-focused behavioural intervention, even when severity of disruptive behaviour was statistically controlled. Conversely, no associations were found between any attributional dimension and treatment acceptability of a child-focused behavioural intervention. Preliminary analyses also revealed that mothers’ ratings of the severity of their child’s disruptive behaviour were significantly negatively associated with the acceptability of both parent-focused and child-focused behavioural interventions. The findings have potential implications for professionals to identify and challenge distorted attributions of parent-referent stability to promote parental acceptance of a parent-focused behavioural intervention for problem behaviour in children with ASD.