It is therefore also necessary to continue to develop ways of monitoring child well-being in the round. Bringing together a total of 40 indicators for which internationally comparable data were available, the report compared child well-being across 21 OECD countries under the headings of material well-being, health and safety, education, peer and family relationships, risk behaviours, and young people’s own subjective sense of wellbeing. This experiment will be refined and repeated with new data in the next issue in this series (Report Card 11).