It is currently Thu Apr 22, 2021 3:37 pm

 All times are UTC [ DST ]

 Page 1 of 1 [ 8 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: The Mean....Posted: Wed Oct 17, 2018 11:56 am

Joined: Wed Oct 17, 2018 10:49 am
Posts: 8
Hey peeps, does anyone know the previous three years mean for the respective cohort? I think I read somewhere that last year the mean was 200 but can't seem to find this key information now.

The mean this year is 203 so I think the overall qualifying mark will go up by three marks.

Top

 Post subject: Re: The Mean....Posted: Wed Oct 17, 2018 1:06 pm

Joined: Tue Sep 11, 2018 5:29 pm
Posts: 38
As per my reply on the other thread. The final number is rounded from the 50% VR +25% NVR + 25%NUM sum. (I can see that from my child's results)

I therefore expect calculating a mean off rounded data will give a different figure than the underlying more precise figures.

Top

 Post subject: Re: The Mean....Posted: Wed Oct 17, 2018 4:02 pm

Joined: Wed Oct 17, 2018 3:56 pm
Posts: 27
I also posted on the other thread. The mean is 200 because that is what they have adjusted (normalised) the scores to create. Your child's final score is not just the sum of the questions they answered correctly, it has had some adjustments made to it based on a few factors.

Top

 Post subject: Re: The Mean....Posted: Wed Oct 17, 2018 4:44 pm

Joined: Wed Oct 17, 2018 4:33 pm
Posts: 1
Hi Darkmuseuk,
Are you saying that the mean is 200 each year?

(New to the site due to a borderline score for my son, trying to get my head round the implications!)

Top

 Post subject: Re: The Mean....Posted: Wed Oct 17, 2018 5:03 pm

Joined: Wed Oct 17, 2018 3:56 pm
Posts: 27
I believe so, if I read the information correctly, yes.
If you look at the table half way down this page you can see that Warwickshire have historically normalised the standardised scores to give an average of 200 and a standard deviation of 30. There's a rabbit hole of maths to follow if you haven't studied statistics

https://en.wikipedia.org/wiki/Eleven-plus

200 = average
230 = top 15%

Last edited by darkmuseuk on Wed Oct 17, 2018 5:32 pm, edited 1 time in total.

Top

 Post subject: Re: The Mean....Posted: Wed Oct 17, 2018 5:08 pm

Joined: Wed Oct 17, 2018 10:49 am
Posts: 8
Sorry for post here as well but post before hadn’t gone through on the other topic and new to the forum and now see it has.

I still don’t understand how they get the mean to be 200 when they take it from the actual standardised scores than actual scores. But hey ho just the waiting game continues...

Top

 Post subject: Re: The Mean....Posted: Wed Oct 17, 2018 5:09 pm

Joined: Wed Oct 17, 2018 10:49 am
Posts: 8
Thank you darkmuseuk!

Top

 Post subject: Re: The Mean....Posted: Wed Oct 17, 2018 5:31 pm

Joined: Wed Oct 17, 2018 3:56 pm
Posts: 27
Sorry, when I said halfway down the page I meant this wikipedia article:
https://en.wikipedia.org/wiki/Eleven-plus

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 8 posts ]

 All times are UTC [ DST ]

#### Who is online

Users browsing this forum: No registered users and 7 guests

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

Search for:
 Jump to:  Select a forum ------------------ FORUM RULES    Forum Rules and FAQs 11 PLUS SUBJECTS    VERBAL REASONING    MATHS    ENGLISH    NON-VERBAL REASONING    CEM 11 Plus GENERAL    GENERAL 11 PLUS TOPICS    11 PLUS APPEALS    INDEPENDENT SCHOOLS    11 PLUS CDs/SOFTWARE    11 PLUS TIPS    PRIMARY    SEN and the 11 PLUS    EVERYTHING ELSE .... 11 PLUS REGIONS    Berkshire    Bexley and Bromley    Birmingham, Walsall, Wolverhampton and Wrekin    Buckinghamshire    Devon    Dorset    Essex    Essex - Redbridge    Gloucestershire    Hertfordshire (South West)    Hertfordshire (Other and North London)    Kent    Lancashire & Cumbria    Lincolnshire    Medway    Northern Ireland    Surrey (Sutton, Kingston and Wandsworth)    Trafford    Warwickshire    Wiltshire    Wirral    Yorkshire BEYOND 11 PLUS    Beyond 11 Plus - General    GCSEs    6th Form    University