2010 PSLE T-score

[atutor2001]

MOE Hater:

Guess I will start the ball rolling.


Math:99
Sci:87
MT:86
English: Still have not gotten back paper 1 so 136/145


estimated PSLE score: ?(can someone help please)

Based on my experience with my kids, your estimated PSLE T-score will be 255 to 265. Must work harder for mother tongue and science to get A*, especially mother tongue (unless your MT is not Chinese). Your T-score will be dragged down by mother tongue.

On the average, a kid with all A* (not those super outstanding type) will get about 270 to 273.

[verykiasu2010]

atutor2001:

MOE Hater:

Guess I will start the ball rolling.


Math:99
Sci:87
MT:86
English: Still have not gotten back paper 1 so 136/145


estimated PSLE score: ?(can someone help please)

Based on my experience with my kids, your estimated PSLE T-score will be 255 to 265. Must work harder for mother tongue and science to get A*, especially mother tongue (unless your MT is not Chinese). Your T-score will be dragged down by mother tongue.

On the average, a kid with all A* (not those super outstanding type) will get about 270 to 273.

it also depends whether is low A* or high A* right ?

I think the t-score increase between low A* and high A* could be sizeable due to the number of SD involved ?

[MOE Hater]

There usually is a big jump. the number of people scoring a low A* is usually much higher than the no.who get a high A*. Then again, it boils down to the difficulty of the paper.


BTW, my MT is not chinese. I take NTIL.

[atutor2001]

verykiasu2010:

atutor2001:

[quote=\"MOE Hater\"]Guess I will start the ball rolling.


Math:99
Sci:87
MT:86
English: Still have not gotten back paper 1 so 136/145


estimated PSLE score: ?(can someone help please)

Based on my experience with my kids, your estimated PSLE T-score will be 255 to 265. Must work harder for mother tongue and science to get A*, especially mother tongue (unless your MT is not Chinese). Your T-score will be dragged down by mother tongue.

On the average, a kid with all A* (not those super outstanding type) will get about 270 to 273.

it also depends whether is low A* or high A* right ?

I think the t-score increase between low A* and high A* could be sizeable due to the number of SD involved ?[/quote]From my personal judgement, my kids scores would likely have been near or equal 100 for math, above 95 for science and between 91 and 95 for Chinese and English. Their T-scores range from 270 to 273.

[atutor2001]

MOE Hater:

There usually is a big jump. the number of people scoring a low A* is usually much higher than the no.who get a high A*. Then again, it boils down to the difficulty of the paper.


BTW, my MT is not chinese. I take NTIL.

Good that you are not taking Chinese. You will not be \"KILLED\" by the exceptionally high mean score.

You are right that the T-score depends on the degree of difficulty of the paper. However, if a certain paper is difficult, \"they\" will moderate the marks - like what happen last year for math paper. The end result is that the normal A* students would still be getting similar kind of T-scores as other years, maybe a little lower. However, for those who got high A* for the difficult paper, their T-score will be way above 280 (unlike a normal year where the all the papers are normal, the top T-score would be usually less than 285).

[atutor2001]

deleted. sorry posted wrongly.

[verykiasu2010]

In any case, one year’s t-score is NOT comparable with any other years : the questions are different, though the mean, median, SD may fluctuate within a certain band.


the whole business of the t-score is to rank one student against ALL his peers in the same cohort and that is it - to determine what is his position among the 40,000+ candidates, and the t-score is in 15 (not 13) decimal places.

this year’s 285 may be of higher / lower aggregate marks than any other years. there is no comparison

if everyone scores full marks for every subject, the perfect t-score is 200, because the mean = median, and SD = zero

[atutor2001]

verykiasu2010:

...........


if everyone scores full marks for every subject, the perfect t-score is 200, because the mean = median, and SD = zero

I used to advise my friends then, to interpret the T-score as a simple gauge on whether are their kids' performing above or below the average. A T-score of 200 is the average score, regardless of the year, type of papers or actual scores.

[hoskins8h]

I think trying to get a T-score from raw marks is error prone because it does not take into account SD nor the difficulty of the paper/ standard of the school. It’s probably more accurate to measure how many SDs the raw score is from the school mean, and adjust for the school mean Tscore. The school T-score performance tends to be fairly stable. Can estimate the school’s mean T-score for each subject by looking that the number of A/A* which schools often publish and comparing it with the national average which is also publicly available.

[verykiasu2010]

hoskins8h:

I think trying to get a T-score from raw marks is error prone because it does not take into account SD nor the difficulty of the paper/ standard of the school. It's probably more accurate to measure how many SDs the raw score is from the school mean, and adjust for the school mean Tscore. The school T-score performance tends to be fairly stable. Can estimate the school's mean T-score for each subject by looking that the number of A/A* which schools often publish and comparing it with the national average which is also publicly available.

of course when the well established pri schools provide the t-scores for their Pri 5 and Pri 6 SA / prelim results, they are based on the establised t-score formula used by MOE, with the school's mean, SD etc etc; and these schools also chart their own internal t-score versus the actual achieved by the kids at PSLE....literally they track the kids by name, for those schools doing a good job at it