BACKGROUND: Behavioural parent training (BPT) is a psychosocial intervention designed for children with attention deficit hyperactivity disorder (ADHD). BPT programs teach parents to use effective commands or rules whilst encouraging them to pay careful attention to their child’s appropriate behaviour. In this study, we will investigate the efficacy of BPT on parental stress, mothers’ sense of emotional closeness to their children, and children’s attachment security to their mothers. We will…