The trial will assess the potential effects of some of the components of the intervention model in 45 secondary schools that will be randomly assigned to two intervention conditions (receiving Inter-Action services and the parent training program in addition to Preventure or receiving the Preventure program and the parent training program) and a control arm that will receive treatment as usual. Schools will be matched on their baseline socio-economic status. Approximately 4000 students in participating schools will be invited to complete annual assessments for 5 consecutive years from grade 7 to grade 11.