Research data collected as part of a project to explore the meaning of good mental health and wellbeing among young people, as well as their understanding of mental health difficulties. The discussions covered various mental health models, with a particular focus on the dual-factor (two-continua) model. Data was gathered through six semi-structured focus groups - three in a Midlands town school and three in a Southern city school. These sessions captured the views of 23 students in total, all aged 16 to 17 years (Year 12). The research data consists of anonymised transcripts and photographs of posters produced by the students during the discussions.