Sez wrote:
Sorry, I meant the same paper for the girls sitting for Woodford as for the boys sitting for Ilford

Yes, sorry - just reread your question

.
But the answer to that is Yes
Standardisation for the boys would ces carried out in the same way - so if you had registered with say, Reading School as well as ICHS (goodness knows why, but just looking for an all-boys equivalent to CCHS in the same CEM group

), you would get two different standardised scores.
As you would for a boy registering for ICHS and girl registering for WCHS, with the same date of birth and same raw scores, as the 'school' cohort would be different.