9. DOLLY I scored 85% in both English and Mother Tongue ! H U R R A Y !
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11. A need for standardisation of the raw scores Transformed Score or T-Score
12. T-Score MT T-Score converts average mark of each subject to a common score of 50 points. It also converts other marks taking into consideration the extent to which they differ from the average and the size of spread of the marks around the average ave = 60 EL ave = 80 50 85% 85%
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14. How is T-Score calculated for each subject? where X: pupil’s mark for the subject Y: average mark (mean) scored by all pupils Z: spread of marks around the average mark (standard deviation) Z Y ) - ( X 10 50 T
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16. How is the Aggregate Score calculated? By adding the T-Scores of the 4 subjects
My presentation will focus on: Placement: there is a need to inform pupils what is in store for them in their next lap of education careers. And How this is met through the use of PSLE aggregates Whose building blocks are the T-scores . Just what are this PSLE aggregates and T-scores: I will elaborate on this and the mechanic of their computation as we proceed.t Last but not least, I will illustrate with example on the relationship between grades and T-scores.
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Basic consideration in the derivation of the aggregate: Must do JUSTICE to the pupils, the aggregate must incorporate the performance of the pupils in their four main areas of studies. Ranking to to into consideration, the relative standing (worth) of pupils in the respective subjects.
Elaborate on SPREAD: As how ell the pupils’ performance are spread across the possible mark range. In some sense, spread denotes how precise a given test (as an instrument) Proceed s to the next slide to illustrate the concept of SPREAD as Precision of instrument.. The extent to which the test is ble to distinguish the performance of the pupils.
Illustrate the concept of SPREAD as Precision of instrument.. The extent to which the test is able to distinguish the performance of the pupils.: by pointing to the way the (size/strength) of the given animals.
Pinpoint in the order of the slide how as more information on the performance are revealed, the relative standing of Dolly’s in MT differ starkly from that of her EL.
The previous slide showed that different subjects appeared to have different standard and thus there is a need to standardise the marks before aggregating them. This is done through the use of T-Score.
Elaborate on the GIST of this transformation process: GIST: Bench mark each pupil’s performance against the average and reward he/she to the extent on how well he/she performed in relation to the average pupil., taking into consideration, the spread (precision) of the distribution of marks earned by the pupils.
In essence, T-Scores provide the relative standing standing of a pupil’s performance in relation to his/her who take the same examination (in the same subject)
Stress the concept of benchmarking against each pupil to the average performance (X-Y) and reward he/she with regards to how far is he/she above (or below) the average level of performance within a given subject, taking into consideration, the spread of the performance in the subject.
Just the sum of T-scores
This slide is to illustrate relationship between grades and T-score/aggregates
Key Idea: There is a range of T-scores associated with a given grade. The A* in John case were weak A*. While the As in Susan’s case were very strong As, and her A8 was really a strong A* as well.
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