Disruptive behaviour disorders present in about 6% of Australian children. If left untreated, these children are at risk of experiencing mental illness, family dysfunction, violence and criminality later in life. Eva believes the solution is enhanced Parent-Child Interaction Therapy (PCIT), which has been shown to be highly effective for the treatment of young children with severe behavioural problems. Following a successful pilot, the UNSW researcher is planning to establish free clinics in schools where parents, children and teachers can receive tailored, high-quality early intervention. These on-site clinic spaces in Sydney's south-west will make mental health services more accessible to at-risk families.