thanks for all your responses ,but how are these standardised scores translated into raw scores so that we can see the expected percentages from the practise papers.
The practical advice is that your child does their best as it all depends how well everybody else does.
My son took the 11+ last year and pased with a score of 124 in the maths paper. When he practiced at home on the NFER paper he % scores ranged from 69% to 85%. How that translates into a score in the actual test is a mystery known to the statisticans at NFER.
The pass mark was unbelievably high last year - set at 519, my son scored 574. In 2004 my daughter sat the test and the pass mark was 509 and she scored 578.
So it all depends on how well your child is prepared on the day compared to everybody else, and you won't know that until they sit the test.