All About T-Score

[joconde]

verykiasu2010:

i used my kid's school's provided data (mean & SD) to simulate the t-score

able to share the figures ? just for reference lah

[verykiasu2010]

joconde:

verykiasu2010:

i used my kid's school's provided data (mean & SD) to simulate the t-score

able to share the figures ? just for reference lah

so so lah

[joconde]

verykiasu2010:

joconde:

[quote=\"verykiasu2010\"]i used my kid's school's provided data (mean & SD) to simulate the t-score

able to share the figures ? just for reference lah

so so lah[/quote] :? what i mean is - i'm interested to know what mean and SD you used for T-score computation

[verykiasu2010]

joconde:

verykiasu2010:

[quote=\"joconde\"]
able to share the figures ? just for reference lah

so so lah

:? what i mean is - i'm interested to know what mean and SD you used for T-score computation[/quote]o i c!

the mean and SD is specific to the cohort in the school and is different for each subject in each exam

for P5, the mean ranges from 65 to 75 and the SD ranges from 9 to 17, cohort size approx 400, excluding GEP

the numbers are similar for P6 SA1, and the median is higher than the mean

all the numbers are from the school

[atutor2001]

verykiasu2010:

o i c!

the mean and SD is specific to the cohort in the school and is different for each subject in each exam

for P5, the mean ranges from 65 to 75 and the SD ranges from 9 to 17, cohort size approx 400, excluding GEP

the numbers are similar for P6 SA1, and the median is higher than the mean

all the numbers are from the school

Don't use \"mean\" that does not include the GEP because GEP's scores will be included for computation of the 'mean' in PSLE.

Be prepared for the 'means' of Math and Chinese to be close to \"80\", that is, if a kid gets 80 marks, in term of T-score, he/she has \"just passed\".

[cascada]

atutor2001:

Be prepared for the 'means' of Math and Chinese to be close to \"80\", that is, if a kid gets 80 marks, in term of T-score, he/she has \"just passed\".

Why you say if one's score = mean, he/she 'just passed'. I'd interpret it as this child's result for that subject is just AVERAGE compared to the whole cohort. It also an indication that if this child wants to be in the top few % then he has to work much harder.

[cascada]

In fact, I felt that SD also provides valuable & meaningful info besides mean. For calculation of T-score, SD is a very crucial factor. So I still disagree that if score = mean, then by t-score its only a just pass.

[joconde]

verykiasu2010:

joconde:

[quote=\"verykiasu2010\"]
so so lah

:? what i mean is - i'm interested to know what mean and SD you used for T-score computation

o i c!

the mean and SD is specific to the cohort in the school and is different for each subject in each exam

for P5, the mean ranges from 65 to 75 and the SD ranges from 9 to 17, cohort size approx 400, excluding GEP

the numbers are similar for P6 SA1, and the median is higher than the mean

all the numbers are from the school[/quote]thanks for the info !

[atutor2001]

cascada:

atutor2001:

Be prepared for the 'means' of Math and Chinese to be close to \"80\", that is, if a kid gets 80 marks, in term of T-score, he/she has \"just passed\".

Why you say if one's score = mean, he/she 'just passed'. I'd interpret it as this child's result for that subject is just AVERAGE compared to the whole cohort. It also an indication that if this child wants to be in the top few % then he has to work much harder.

If a child gets the \"mean\" scores for all 4 subjects, his aggregate T-score will be 200 points which is the base level needed to get into \"express\" for a reasonable school.

I should have rephrased it as \"just pass to get into express\". My apology.

[hoskins8h]

Means and SD from school results needs to be adjusted for the standard of the school vs national average. So whilst most schools average 200, the top schools would be in region of 230+.