Atom Learning/Standardised results-CAT4 SAS

[Supercoolmoon]

Hi all, I am a bit confused and I could do with some help. Apologies if I am not explaining myself clearly, I was raised in the Middle East so I am not sure how it all works!

My child is preparing for his 11+ by doing Atom work.
We have 1- the Standardized results from his school for the tests taken each September, and 2- Atom Learning scores. I understand from some tables posted here in another thread that the school results/numbers do not mean the same as the Atom results/numbers. Please see the image in my second post. Obviously these numbers do not make that much of a difference, but given that it's an average between NVR/VR/English/Mats (right!?) then it does matter whether he gets less in Atom but that still correspond to a higher number at school.
Now what I don't get: my child did a mock test on Atom today specifically called 'ISEB'. I guess that is an ISEB past paper, it was composed of the 4 subjects above. His result was less than expected, and I am a bit shocked.

Here’s the data

What do you need help with?

Let's say his average score on the Atom ISEB he did today was 125. That could be enough for him to enter Westminster according to the table above (I know - in theory, things change, etc etc, I am just trying to understand) because an Atom 124 is comparable to a Westminster 132. However this was an ATOM Iseb, not a 'free standing' ISEB paper, so would that mean that the score should be taken at face value and not translated from an Atom score into a CAT4 SAS?
If you've managed to understand what I am asking I would really like to hear your opinion!
Thank you.

I would say if your dc gets 125+ on Atom mocks then he is in a good place. Even better if you can get it to 130s. But you still have plenty of time.

Still plenty, plenty of time. My DC increased quite a lot from this point to test. Atom seemed, nearer the test, be in the region of 125-138 (sometimes higher, sometimes lower).

School standardised in the mid / high 130s.

ISEM DC achieved 135-138, with mid 120s in English. Of those we know, many had high NVR/Maths scores but what will really set kids apart is the English/VR so focus on that. Lots of kids are good at NVR/Maths.

Got a first round place at Westminster. Didn't take it up due to distance, wanted a more local school.

Good luck!

Sorry that should say ISEB results (the actual ones)...

Thank you, really appreciate the information!

Hi! Would you have these data for girls day schools please?Thank you!

@CrankyP can find it here https://www.mumsnet.com/talk/secondary/4560139-11-score-what-scores-needed-to-get-into-competitive-london-schools?page=3&reply=117625828

Some parents last year mentioned for top grammar schools this is not very good indicator which I also agree with.

It is just a very very rough guideline and the variation is not shown so try to get higher score higher than your target.

Thank you