1. River Valley Primary School – Strive for the Best WELCOME Presentation slides can be downloaded from: http://www.rivervalleypri.moe.edu.sg

2. River Valley Primary School – Strive for the Best SEMINAR PSLE ? ? ?

3. River Valley Primary School – Strive for the Best SEMINAR PSLE OUTLINE PSLE is a placement exam What is the PSLE Aggregate SCORE? Why is T-Score used? Definition & Calculation of T-Score Questions about T-Score

4. River Valley Primary School – Strive for the Best SEMINAR PSLE PSLE - a placement exam Need to reflect the relative achievement level of pupils within their peers. Places pupils into different courses according to their academic ability Enables posting to secondary schools by merit and as far as possible into a school of their choice.

5. River Valley Primary School – Strive for the Best SEMINAR PSLE What is PSLE Aggregate Score? It is a sum of scores. What are these scores? Are they raw scores?

6. River Valley Primary School – Strive for the Best SEMINAR PSLE The PSLE Aggregate Score incorporates performance of pupils in all 4 subjects allows pupils to be ranked fairly

7. River Valley Primary School – Strive for the Best SEMINAR PSLE Can raw scores be used? NO !

8. River Valley Primary School – Strive for the Best SEMINAR PSLE Why Not? Different subjects have different levels of difficulty So are the spread of marks from the average mark, i.e. the standard deviation (spread = standard deviation)

9. River Valley Primary School – Strive for the Best SEMINAR PSLE MEASURE OF S P R E A D Narrow Wide

10. River Valley Primary School – Strive for the Best SEMINAR PSLE DOLLY I scored 85% in both English and Mother Tongue ! H U R R A Y !

11. River Valley Primary School – Strive for the Best SEMINAR PSLE Dolly scores 85% in both EL and MT 85% EL EL ave = 60 MT MT ave = 80 Her performance in MT is very close to that of other pupils She did much better in EL as compared to other pupils 0100

12. River Valley Primary School – Strive for the Best SEMINAR PSLE A need for standardisation of the raw scores Transformed Score or T-Score

13. River Valley Primary School – Strive for the Best SEMINAR PSLE T-Score ave = 60 EL MT ave = 80 50 85% 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

14. River Valley Primary School – Strive for the Best SEMINAR PSLE What is T-Score? It gives the relative position of a pupil’s performance as compared to the performance of all the other pupils in that subject The raw mark obtained in the exam only shows how good the pupil is in that subject, not how good he is as compared to others

15. River Valley Primary School – Strive for the Best SEMINAR PSLE 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)Y)-(X(X 10 50 T 

16. River Valley Primary School – Strive for the Best SEMINAR PSLE Example: Pupil’s mark (X) in exam = 50.0 Average mark (Y) scored by all pupils = 68.0 Spread of marks (Z) around the average mark (Y) = 14.0 T = 50 + 10 (50 - 68.0) 14.0 = 37.14

17. River Valley Primary School – Strive for the Best SEMINAR PSLE How is the Aggregate Score calculated? By adding the T-Scores of the 4 subjects

18. River Valley Primary School – Strive for the Best SEMINAR PSLE Example: SubjectTotalMarkT-Score EL120010534 CL220015251 Maths1006753 Science1005847 Aggregate:185

19. River Valley Primary School – Strive for the Best SEMINAR PSLE Finally, all pupils are ranked according to their Aggregate Scores

20. River Valley Primary School – Strive for the Best SEMINAR PSLE T-SCORES & GRADES: Is it possible for a pupil with 3A* and 1A to be ranked lower than another pupil who has only 1A* and 3As? Yes, it is possible

21. River Valley Primary School – Strive for the Best SEMINAR PSLE Aggregate T-Score: 246 249

22. River Valley Primary School – Strive for the Best Expected Aggregate Score by Class 2010 Expected Aggregate Score by Class 2010 Aggregate Score 6 Honesty255 6 Kindness245 6 Patience235 6 Confidence200- 210 6 Diligence200- 210 6 Endurance200- 210 6 Friendship200- 210 6 Graciousness200- 210

23. River Valley Primary School – Strive for the Best 50 X4= 200 200X 0.85=170 200X 0.8 = 160 60 X 4= 240 240 X 0.85 = 204 240 X 0.8 = 192 80 x 4=320 320X 0.8=256 320X 0.75= 240 Estimation of Aggregate Score

24. River Valley Primary School – Strive for the Best Average of 4 SubjectsPossible Aggregate Score 80 & Above250- 280 75230- 245 70215- 220 60200 50180

25. River Valley Primary School – Strive for the Best Home Support  GROW ME Model  Encouragement  Standards of literacy and numeracy

26. River Valley Primary School – Strive for the Best