Age standardisation of raw score -fact

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amita77
Posts: 4
Joined: Mon Oct 26, 2015 6:31 pm

Age standardisation of raw score -fact

Post by amita77 »

Hi everyone,
I am feeling very nervous, someone told me that the older children are actually at loss in the exams and around 7 marks for deducted from the raw score :( . DS is Autumn born, how many marks is he likely to loose. Please guide me anyone with an older child success story?
ToadMum
Posts: 11946
Joined: Wed Jan 18, 2012 12:41 pm
Location: Essex

Re: Age standardisation of raw score -fact

Post by ToadMum »

amita77 wrote:Hi everyone,
I am feeling very nervous, someone told me that the older children are actually at loss in the exams and around 7 marks for deducted from the raw score :( . DS is Autumn born, how many marks is he likely to loose. Please guide me anyone with an older child success story?
Hi
I won't be so rude as to say, here we go again :oops: , but I'm assuming that you didn't employ the 'search' function on this site before posting? If you had, you would have been able to put your own mind at rest, because there are plenty of posts explaining that age standardisation means comparing children of similar 'fine' age group within the cohort (usually birth month) with each other. Not taking marks away from older children. Not adding marks to the scores of younger children. It's a way of trying to ensure a fair representation of all ages :) .

The average raw score each sub-group will be the standardised score of 100 for that group. For each sub-group, a score of above 115 will normally mean having done better than about 84% of that group (it doesn't mean that you need to get 84% in the exam); in a normal distribution, 68% of candidates will fall in the range 85 - 115. The sub-groups are then 'reassembled', with the effect that all standardised scores of, say, 121 are now regarded as equal, even though there may be as many different underlying raw scores as there are sub-groups.

The 'natural' (and assumed) pattern is for younger groups to get lower raw scores and therefore their '100' will reflect a lower underlying paw score than that of the older sub-groups. However, if there is a particularly bright bunch of e.g.May-born children in the cohort, their average raw score may actually be higher than that of e.g.the December-borns.

I do hope that this helps to allay your fears :D
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scary mum
Posts: 8841
Joined: Mon Mar 15, 2010 3:45 pm

Re: Age standardisation of raw score -fact

Post by scary mum »

There is also an explanation here:
http://www.elevenplusexams.co.uk/advice ... -scores-an" onclick="window.open(this.href);return false;
scary mum
Guest55
Posts: 16254
Joined: Mon Feb 12, 2007 2:21 pm

Re: Age standardisation of raw score -fact

Post by Guest55 »

Bucks scores are standardised to give roughly 30% above 121 [qualification score].
kittymum
Posts: 925
Joined: Thu Dec 11, 2008 10:42 pm

Re: Age standardisation of raw score -fact

Post by kittymum »

amita77 wrote:Hi everyone,
I am feeling very nervous, someone told me that the older children are actually at loss in the exams and around 7 marks for deducted from the raw score :( . DS is Autumn born, how many marks is he likely to loose. Please guide me anyone with an older child success story?
The someone was incorrect. As others have explained children are age standardised. No one has marks taken off or given! Like is just compared to like.

My ds has 2 friends with birthdays on 2nd September.
amita77
Posts: 4
Joined: Mon Oct 26, 2015 6:31 pm

Re: Age standardisation of raw score -fact

Post by amita77 »

Thanks a lot everyone.
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