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 Post subject: Re: Age Standardisation
PostPosted: Tue Mar 05, 2019 12:23 pm 
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Posts: 62
That’s fine and putting aside the debate for/against the merits of age-standardisation, they did mention when the results were released that age-standardisation was being applied for 2019 entry. However, what the CSSE should have been more explicit/forthcoming about (which to his credit the Head at KEGS did imply during the post-results open day), was that you couldn’t place any reliance on the traffic-light sheet. I feel that it was irresponsible of the CSSE, and naive of those parents who couldn’t appreciate this.


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 Post subject: Re: Age Standardisation
PostPosted: Wed Jun 19, 2019 9:56 am 
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There was a post which had a response from Kent regarding standardisation which might be helpful:
https://www.elevenplusexams.co.uk/forum/11plus/viewtopic.php?f=5&t=54984


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 Post subject: Re: Age Standardisation
PostPosted: Wed Jun 19, 2019 12:13 pm 
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turnip08 wrote:
There was a post which had a response from Kent regarding standardisation which might be helpful:
https://www.elevenplusexams.co.uk/forum/11plus/viewtopic.php?f=5&t=54984


That's really interesting especially the point about the marking


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 Post subject: Re: Age Standardisation
PostPosted: Wed Jun 26, 2019 8:35 pm 
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How is a child born towards the end of March considered in all of this? Are they disadvantaged?


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 Post subject: Re: Age Standardisation
PostPosted: Wed Jun 26, 2019 8:40 pm 
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Or a child born in December or October? How are they impacted? I’m beginning to worry about the impact of age standardisation as I don’t understand it at all! How about CCHS? How do their results compare before and after age standardisation?


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 Post subject: Re: Age Standardisation
PostPosted: Thu Jun 27, 2019 5:31 am 
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The effect of age standardisation ,very simplistically, means that children are competing for places against children who are the same age, usually in months. You shouldn’t think of it as advantage/disadvantage between the different month groups. All any child needs to do is rank highly against other children born in the same month.


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 Post subject: Re: Age Standardisation
PostPosted: Thu Jun 27, 2019 6:03 am 
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mitasol wrote:
The effect of age standardisation ,very simplistically, means that children are competing for places against children who are the same age, usually in months. You shouldn’t think of it as advantage/disadvantage between the different month groups. All any child needs to do is rank highly against other children born in the same month.


That may well be the way it's done by the CEM for CCHS, but the method employed by CSSE for their schools this year was actually linear (that is, involving the number of days younger than a candidate born on September 1st). So the answer is that a 1st Dec birthday will be 'upplifted' by c.91 days x a fixed amount, March 1st by 181, etc. So an August-born scoring raw marks equating to 400.123 would end up with a standardised score quite a bit higher than a 1st September-born candidate with the same raw marks.

https://csse.org.uk/images/simplefilema ... -10-18.pdf

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 Post subject: Re: Age Standardisation
PostPosted: Mon Jul 01, 2019 3:51 pm 
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mitasol wrote:
The effect of age standardisation ,very simplistically, means that children are competing for places against children who are the same age, usually in months. You shouldn’t think of it as advantage/disadvantage between the different month groups. All any child needs to do is rank highly against other children born in the same month.

Im not convinced by the above, but assuming an intake of e.g. 180 with all students sitting the entrance exam being equally distributed, it would suggest that 15 pupils would be awarded a place from each monthly cohort.

Am I missing something?


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 Post subject: Re: Age Standardisation
PostPosted: Mon Jul 01, 2019 4:07 pm 
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Joined: Mon May 16, 2011 1:05 pm
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Location: Reading
DSDSDD wrote:
mitasol wrote:
The effect of age standardisation ,very simplistically, means that children are competing for places against children who are the same age, usually in months. You shouldn’t think of it as advantage/disadvantage between the different month groups. All any child needs to do is rank highly against other children born in the same month.

Im not convinced by the above, but assuming an intake of e.g. 180 with all students sitting the entrance exam being equally distributed, it would suggest that 15 pupils would be awarded a place from each monthly cohort.

Am I missing something?


There are unlikely to be equal amounts of students for each month. There does tend to be more Autumn borns taking the tests, than summer borns.
Also not everyone who qualifies actually applies, so that can upset the figures a little, although you’d expect that to be similar across the cohort (but not always the case).

However, in general Mitasol is correct, this is how most schools standardise. Just not for all schools as TM as pointed out.


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 Post subject: Re: Age Standardisation
PostPosted: Mon Jul 01, 2019 4:41 pm 
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Joined: Tue Oct 16, 2018 9:36 pm
Posts: 62
I used the numbers and assumptions above for simplicity, but is my interpretation correct? I.e. 15 students from each monthly cohort would be offered a place if all entrants applied for the school.

If yes, then how is this method of age-standardisation justified if it is only applied intra-month, BUT not across the year as a whole (as implemented by CSSE for 2019 entry)?

For example: you could have a child born 31Jan who was ranked 16th in his/her monthly cohort (hence not offered a place), but a child born 1Feb who ranked 15th in his/her monthly cohort (offered a place) that scored ‘materially’ lower.


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