The data are not weighted to account for this, and this limitation should be considered when interpreting the results.The aim of the booster sample is to enable monitoring of progress against key indicators 4(i) and 4(ii) of the Tobacco and Vaping Framework (i.e. smoking and vaping behaviours in children and young people), while balancing cost, analytical value, and timeliness.Information on the methodology (including sample size) and results for 2024 and 2025 are available on the Scottish Government website...