This Record is a digital tombstone. The data files associated with this record were destroyed/deleted on the 20 April 2026 in line with the approved retention schedule. Low-intensity parenting programmes play a key role in a public health approach to parenting support and are designed to be a cost-effective intervention for child conduct problems. Several studies that have evaluated a single topic-specific Triple P–Positive Parenting Program Discussion Group, an example of a low-intensity parenting programme, have found promising results for improving child and parent outcomes among parents with young children. This thesis aimed to examine ways to enhance the intervention outcomes of low-intensity topic-specific parenting groups for parents with young children. In study one, the effects of generalisation promotion strategies, such as teaching multiple exemplars, were examined. As a single training exemplar may not be sufficient for parents to effectively generalise parenting skills, multiple exemplars may assist parents to flexibly apply skills across a range of behaviours and settings leading to greater change in child behaviour, parenting practices, and parenting self-efficacy. This study also sought to extend the literature by examining the effects of low-intensity parenting groups with parents of primary school aged children using topics relevant to this development phase and investigating outcomes for mothers and fathers separately. A two arm randomised control trial design was used to compare the two conditions (single exemplar vs. multiple exemplar).