how to calculate t score

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 Post subject: how to calculate t score
PostPosted: Tue May 08, 2012 8:27 pm 
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KiasuNewbie
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if my son get the following resutls for psle on 2011,

english:79
math:98
science:95
mother tongue:92

what will be his aggregate score,and which secondary schools would he get to choose? :? :? :? :? :? :udaman: :udawoman:


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 Post subject: Re: how to calculate t score
PostPosted: Tue May 08, 2012 8:53 pm 
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BlackBelt
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psle wrote:
if my son get the following resutls for psle on 2011,

english:79
math:98
science:95
mother tongue:92

what will be his aggregate score,and which secondary schools would he get to choose? :? :? :? :? :? :udaman: :udawoman:



How is T-Score calculated for each subject?
We apply the following formula:
T=50+10 (X-Y)
Z
Where: X is the pupil’s mark for the subject
Y is the average mark (mean) scored by all the
pupils
Z is the spread of the marks around the
average mark (standard deviation)

http://www.sciencebuddies.com.sg/pdf/tscore.pdf


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 Post subject: Re: how to calculate t score
PostPosted: Tue May 08, 2012 10:49 pm 
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KiasuGrandMaster
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i thought i saw there was a thread in KSP discussing about this :?


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 Post subject: Re: how to calculate t score
PostPosted: Thu May 17, 2012 7:06 pm 
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KiasuNewbie
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Thanks verysuperkiasu, can i know what average scores and standard deviation for 2011 is for 4 subjects?


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 Post subject: Re: how to calculate t score
PostPosted: Tue May 22, 2012 11:39 am 
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GreenBelt
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psle wrote:
Thanks verysuperkiasu, can i know what average scores and standard deviation for 2011 is for 4 subjects?


The Mean score and Standard Deviation are only known to the MOE. Hence, you can only estimate them. Average Mean Scores is probably around 80. While SD is around 10.


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 Post subject: Re: how to calculate t score
PostPosted: Tue May 22, 2012 12:02 pm 
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KiasuGrandMaster
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Mean scores will differ for different subjects, so will the SD. For the more difficult paper, mean score can be lower. Depending on the cohort "quality", the SD can be hovering around the mean or be very spread out for a highly diverse standard cohort.


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 Post subject: Re: how to calculate t score
PostPosted: Tue Jan 14, 2014 7:50 pm 
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KiasuNewbie
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Joined: Tue Jun 21, 2011 12:12 am
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Hi!

My son has been exempted from Mother Tongue (MT), hence the exam score will not be included, afaik.

In this regard, how to calculate T-Score if kid is exempted from MT?

Many thanks for reply.



Regards,

ChandraShin


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