Children’s Worlds survey has been conducting research across the world understanding children in a range of countries. The latest survey for England has recently been published, based on research from late 2013 and early 2014.
There’s a huge wealth of statistics in the 38 page report which is worth digging into. Here’s how the research sample was taken:
The England sample was designed to achieve a nationally representative sample of children aged 8 to 9 years old, aged 10 to 11 years old and aged 12 to 13 years old with at least 1,000 children in each group. The primary sampling unit was schools. Separate samples were drawn for Years 4 and 6 (primary school education) and Year 8 (secondary school education). Both samples followed the same methodology. First, a complete list of schools in England was stratified into five groups by the proportion of children receiving free school meals (a very rough indicator of economic prosperity). These groups were approximate quintiles (based on numbers of pupils in each stratum). The approximation was because of a lack of precision in the data available on free school meal entitlement. Within each stratum schools were selected randomly with probabilities proportional to size (number of pupils), with the aim of achieving a target of at least eight schools per stratum. Within each selected school, one class group (not grouped on pupil ability) was randomly selected.