All About T-Score

[ppnqq]

Would like to know the formula as I am very poor in Maths.


What is the average score for each subject (total 4 subjects) if one scored 230/300 for PSLE?

TIA.

[autolycus]

ppnqq:

Would like to know the formula as I am very poor in Maths.


What is the average score for each subject (total 4 subjects) if one scored 230/300 for PSLE?

TIA.

There is no maximum score for PSLE. But the average score would be 57.5 for 230/4.

[ppnqq]

autolycus:

ppnqq:

Would like to know the formula as I am very poor in Maths.


What is the average score for each subject (total 4 subjects) if one scored 230/300 for PSLE?

TIA.

There is no maximum score for PSLE. But the average score would be 57.5 for 230/4.

Thanks for the reply but I am not looking at the max score. I just wanted to know how to calculate the individual subject score (ave) if the PSLE score is eg 230/300. Well you see, per subj is over 100, so for 4 subj would be 400 but for PSLE agg score is 300. So I would like to know what is the formula for deriving the ave score for the individual subj base on an agg of 230/300. Thank y ou.

[wonderm]

ppnqq:

autolycus:

[quote=\"ppnqq\"]Would like to know the formula as I am very poor in Maths.


What is the average score for each subject (total 4 subjects) if one scored 230/300 for PSLE?

TIA.

There is no maximum score for PSLE. But the average score would be 57.5 for 230/4.

Thanks for the reply but I am not looking at the max score. I just wanted to know how to calculate the individual subject score (ave) if the PSLE score is eg 230/300. Well you see, per subj is over 100, so for 4 subj would be 400 but for PSLE agg score is 300. So I would like to know what is the formula for deriving the ave score for the individual subj base on an agg of 230/300. Thank y ou.[/quote]As autolycus mentioned, there is no such thing as \"PSLE agg score is 300\". PSLE T-score is the sum of T-score for each of the 4 subjects, and T-score for each subject is computed as 50+10*(Your Raw Score-Mean Score)/Std Deviation. For a T-score of 230, the average T-score is just 57.5. There is no way to know the average raw score without knowing the mean score and SD for those subjects. In other words, 230 is just a relative score which indicates how one person performs relative to his cohort in the PSLE exam. Hope this answers your question.

[jysh]

Dharma:

atutor2001:

Oh my ...!


Those who score 100 for math will get a T-score of 91.

Those who score 100 for science (near impossible) will only get a T-score of 77.5

100 in English (another impossible case) the T-score will be 74.5

100 in Chinese (for PRC) the T-score will be 72.

I hope you will now understand why I have made so much noise regarding the Math paper. There will be at least 50 pupils out there who get 100 for math, enjoying a disproportionate jump in their T-score.

Anyway, MOE will sure have to moderate the marks. Otherwise the top student will have an aggregate T-score of over 300 (a new record)

Hi atutor2001,

Thought max possible T-score is 75.

the maximum 300 t-score is not divided into 4 for 4 subjects.

[autolycus]

jysh:

the maximum 300 t-score is not divided into 4 for 4 subjects.

The aggregate score has no maximum. It is the sum of the t-scores for the 4 subjects, each of which is calculated separately based on the statistical distribution for that subject. The reason it isn't likely to go above 300 is that the population is very large.

[Jossie]

http://road-to-psle.blogspot.com/2007/11/how-psle-aggregate-and-t-scores-are.html

ppnqq:

Would like to know the formula as I am very poor in Maths.

What is the average score for each subject (total 4 subjects) if one scored 230/300 for PSLE?

TIA.

[doublesmile10]

ppnqq:

autolycus:

[quote=\"ppnqq\"]Would like to know the formula as I am very poor in Maths.


What is the average score for each subject (total 4 subjects) if one scored 230/300 for PSLE?

TIA.

There is no maximum score for PSLE. But the average score would be 57.5 for 230/4.

Thanks for the reply but I am not looking at the max score. I just wanted to know how to calculate the individual subject score (ave) if the PSLE score is eg 230/300. Well you see, per subj is over 100, so for 4 subj would be 400 but for PSLE agg score is 300. So I would like to know what is the formula for deriving the ave score for the individual subj base on an agg of 230/300. Thank y ou.[/quote]There is no such thing as maximum t score the t score can be over 300 provided that the paper is very difficult

[PlatypusMeowMeow]

Can you ppl help me caculate my t-score 4 PSLE if I get:


English-83
Math-85
Science-85
Chinese-80

Thx :

[Pen88n]

PlatypusMeowMeow:

Can you ppl help me caculate my t-score 4 PSLE if I get:


English-83
Math-85
Science-85
Chinese-80

Thx :

I would suggest read thru' the thread to understand how T-Score is computed and the computation formula. With only a raw score (your marks) at hand, there is no way to compute the T-Score as you will need the cohort Mean and Standard Deviation to get the \"normalization\".