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PostPosted: Mon May 21, 2018 6:53 pm 
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Joined: Sat Dec 29, 2012 11:40 am
Posts: 66
Location: Hockley, Essex
Hi All,

Could anyone please help me?. I’m looking to find out what raw scores equate to the minimum pass mark of 303 as we are in catchment. I appreciate it varies every year just looking for a guide. Many thanks. Hoping someone can help.


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PostPosted: Mon May 21, 2018 9:43 pm 
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Joined: Wed Jan 18, 2012 11:41 am
Posts: 7605
Location: Essex
This is the calculation:

Standardised score = (((raw score - mean) /standard deviation) x 15) + 100
Total score = 1.5 x standardised Mathematics + 1.5 x standardised English.
(from a thread from 2014)

And here are the mean scores and standard deviations for the 2018 entry papers (from the 2018 collated cut-offs thread):

English (% since from 2012 to 2014, the paper was marked out of 50, but from 2015 out of 60)
____________________ 2012 ____ 2013 ___ 2014 ____ 2015 ____2016 ____ 2017 ____2018
mean ________________46.0____ 37.4____ 49.3_____ 55.3 ____ 50.8 ___ 47.2 ____ 67.1
standard deviation ____ 13.8____ 14.2____ 13.8_____ 14.4 ____ 9.2 _____8.1_____ 8.7

67.1% of 60 = raw score of 40.26

Mathematics (% since from 2012 to 2014, the paper was marked out of 40, but from 2015 out of 60)
____________________ 2012 ____ 2013 ___ 2014 ____ 2015 ____2016 ____2017_____2018
mean ________________ 54.1____ 54.6____ 52.1_____ 63.9 ____ 59.9 ____58.3_____54.1
standard deviation _____ 20.4____ 17.7 ____ 20.5 ___ 17.8 _____12.8 ____ 12.0 ____ 11.2

54.1% of 60 = a raw score of 32.46

Applying a bit of trial and improvement, I calculated that

• an English score of 36 plus Maths of 36 would have given a standardised score of 296.094

• an English score of 36 plus Maths of 40 would have given a standardised score of 304.13

• an English score of 38 plus aMaths of 37 would have given a standardised score of 303.275

(I think! - feel free to chip in and tell me I must have gone horribly wrong somewhere :lol: ).

_________________
Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read.Groucho Marx


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PostPosted: Sat May 26, 2018 12:11 pm 
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Joined: Sat Dec 29, 2012 11:40 am
Posts: 66
Location: Hockley, Essex
Thank you. Looks like 60% minimum in both papers. Best crack on then :D


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PostPosted: Mon Jun 04, 2018 8:17 pm 
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Joined: Tue Oct 15, 2013 9:18 am
Posts: 35
Thanks for the explanation, ToadMum - the leap from 2017 English to 2018 English seems massive! Must have either been a much easier paper than previous years, or a much stronger (in English at least) cohort? I haven't seen the paper (the most recent one we have is the 2017 intake Ishiguro one) but I'd love to know how such a big difference came about??


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PostPosted: Tue Jun 05, 2018 7:23 am 
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Joined: Sat Oct 14, 2017 9:16 am
Posts: 22
Hi,

I had one daughter sit the 2017 paper and one the 2018 paper. Both of mine are very strong in English. The 2017 paper was a lot harder than the 2018 English paper. My middle daughter came out saying it was a lot easier than any of the practice papers she had sat.


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