Does parent management training reduce behavioural and emotional problems in children with intellectual disability? A randomised controlled trial.

Background: Children with intellectual disability (ID) are more likely to develop behavioural and emotional problems. However, specific interventions for the treatment of these problems in children with ID have rarely been evaluated. Parent management training (PMT) has been shown to be effective in reducing behavioural and emotional problems for other mental disorders. Therefore, we developed and evaluated a special PMT intervention for parents of children with ID.

Methods: The PMT was developed based on existing programs for children with other mental disorders. The effects of the PMT were analysed in a randomised controlled trial (intervention group: n = 21; waitlist control group: n = 21). The primary outcome was behavioural and emotional problems of children as rated by parents. Additionally, effects on parent-rated family burden and positive and negative parenting were assessed.

Outcome: For the primary outcome, a statistically significant reduction of behavioural and emotional problems of the children emerged, with moderate effects for disruptive/ antisocial behaviour and anxiety. Family burden was reduced as a trend, with a small effect size. There was a significant increase in positive parenting and no effect on negative parenting.