Governing boards have a legal duty under The Equality Act to protect pupils and staff against discrimination, harassment and or victimisation.
A score of 4 means you have read and understood Department for Education guidance on The Equality Act (and or NGA Equality and diversity guidance).
2 or 3 means you have some understanding of the responsibilities that schools have under The Act but require further clarity.
1 means you have not yet built an understanding of The Act as it applies to schools.