Go to navigation
It is currently Sun Dec 04, 2016 2:21 pm

All times are UTC




Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject: Age standardisation
PostPosted: Fri Sep 13, 2013 8:45 pm 
Offline

Joined: Wed Sep 26, 2012 8:21 am
Posts: 90
Hi
How does age standardisation work?
My ds is July born - is it true that with standardisation that Sept children will be compared with other Sept children, Oct with Oct children, July with other July children & so on....?
My only worry is that my DS is quite immature & that this test might have come at least 9-12 months too early :(
Maybe someone can help to put it all in SIMPLE terms for dunces like me :lol: (Is Okanagan out there)??


Top
 Profile  
 
 Post subject: Re: Age standardisation
PostPosted: Fri Sep 13, 2013 9:11 pm 
Offline

Joined: Mon Aug 22, 2011 8:20 pm
Posts: 1706
Location: Warwickshire
Yes in theory (that's in theory they are compared with other children born in the same month, not in theory I'm out there :lol: )

In theory they could do a complete standardisation based on those from each month, but the sample size isn't really large enough for them to do that with any statistical validity, so in practice what it means is that there's an adjustment to the standardised score for each subject area to reflect their age - based on the average scored by the children born in that month. So (keeping it simple) if October children on average scored 1 mark less then September children, then they'd all get one mark added to compensate for that.


Top
 Profile  
 
 Post subject: Re: Age standardisation
PostPosted: Fri Sep 13, 2013 9:17 pm 
Offline

Joined: Wed Jul 31, 2013 4:03 pm
Posts: 1379
Okanagan wrote:
So (keeping it simple) if October children on average scored 1 mark less then September children, then they'd all get one mark added to compensate for that.


So we have to hope there aren't any really high scoring summer born children putting their monthly average score up! :?

JD


Top
 Profile  
 
 Post subject: Re: Age standardisation
PostPosted: Fri Sep 13, 2013 9:21 pm 
Offline

Joined: Mon Aug 22, 2011 8:20 pm
Posts: 1706
Location: Warwickshire
There should be 150+ children per month, so that ought to be enough to dilute the effect of any one anomalous individual.


Top
 Profile  
 
 Post subject: Re: Age standardisation
PostPosted: Sat Sep 14, 2013 10:13 am 
Offline

Joined: Thu Jan 10, 2013 5:27 pm
Posts: 604
Thanks Okanagan - I finally understand age standardisation! :oops:


Top
 Profile  
 
 Post subject: Re: Age standardisation
PostPosted: Mon Sep 16, 2013 8:23 am 
Offline

Joined: Mon Sep 09, 2013 11:41 am
Posts: 7
Didn't realise about this. My son is an August birth and has just done his 11+.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
CALL 020 8204 5060
   
Privacy Policy | Refund Policy | Disclaimer | Copyright © 2004 – 2016