80% of youth with mental health problems do not seek assistance from services. A consortium of national bodies, clinical services and Deakin University will conduct a multi-centre evaluation of a family based intervention for families who have youth with identified mental health problems but refuse services. We propose that this intervention - refined and developed over more than a decade - will be more effective in engaging youth in services and improving all family member's mental health as compared to current standard practice. the project will enhance the capacity of current service delivery, influence policy development via key national bodies and deliver improved family mental health to address the national crisisin youth mental health.