Data Validation Disclaimer: This is based on data from July 2024 from the official association websites showing member schools at that time.

Member school websites were then accessed to obtain the name and gender of the Principal.

Ethnicity was taken as binary qualitative data: White or Non-White (Global Majority) rather than specific ethnicity i.e. Asian, Black, Mixed, Other etc.

In some cases duplication of names existed either due to the school structure where the Principal was in fact an Executive Principal or given the time of the year of this data extraction i.e. end of the school year, they were inbetween schools and appeared as the outgoing and incoming Principal.

Where websites were not valid (highlighted red), official inspection reports, official association conferences and other online profiles were sought to validate the name of the Principal of that school.

Clearly data is updated with membership changing, school principal changing and ownership of schools also changing.