The authors discuss the use of surveys for collecting data from a population sample and emphasise the importance of being careful with the language of data collection. [For "The Data Files 5: Graphs for Exploring Relationships," see EJ1355504.]

International survey researchers are increasingly turning to a geospatial sampling approach known as gridded population sampling for finer resolution and a more updated sampling frame than conventional census-based sampling. To date, there have been no direct comparisons of accuracy between survey results derived from the two methods. This…

This document is a technical appendix to the report "Executive Headteachers: What's in a Name? A Full Report of the Findings." It provides a detailed account of the methodology used to obtain the data on which the report is based. The research explored the prevalence and nature of the executive headteacher role, in order to inform policy…