The Active Lives Children and Young People survey was designed to achieve fixed numbers of returns from children within each local authority across each year of the survey.
It is not possible to calculate pupil level response rates as we do not know the number of individuals in each class selected to participate (and hence the size of the eligible sample).
However, we can calculate school response rates at local authority level, by dividing the number of schools invited within each local authority by the number of schools that participated within each local authority.
Sport England has used the final data to analyse activity levels by local authority, so the survey method aimed to receive a minimum of 300 responses per local authority.