""Don, I do not understand why it is divisive that some schools get better results than others.""

It depends on what proportion of their pupils are the high achievers of the affluent, mainly white, comfortably off parents who will fight scheme, move house or lie to get a place.

Back street kids with special needs, Asians with a language problem both Hindu and Muslim?

How good are their chances to get a place in your perfect SAT super schools. Not great I'd say.

And another point! S.A.Ts are the very last measure I would noise abroad as the prime indicator of school quality.

They are much more often an indicator of how far a school will go in cheating to improve its league position.

A much safer indicator is an assessment of ability by year 7 teachers, who are in a position to state with accuracy just how far most kids are from the SAT level they bring with them.

My son could right a book on that.

Don T.