I was talking with a colleague yesterday about how we find articles discussing the best ways to improve this or that social inequity in education. The research describes such artificial constructs and we were both left irritated at the lack of attention to being human. Personally, and lacking research to back this, you can employ all the constructs you want but you cannot achieve equity if people are not treated well. The secretary who smiles at everyone entering the school does more for equity than the contract with the interpreter.
Go ahead…walk into a school where you are ignored or even scowled at….see if you even want to ask about services.