Here’s a nasty thought experiment.
Suppose on one hand, you have a team that is a sample of RI, ACS and Hwa Chong students. Their average PSLE score is 265. We shall call this team A.
Team B consists of a bunch of kids from government secondary schools, such Changkat Changi Secondary or St Gabriel secondary secondary etc… Suppose this selected sample would also have an average PSLE score of 265 ( this is a small sample size and some kids volunteer to go to ordinary schools ! )
Is there a significance in the life outcomes of these different group of students ?
This experiment was done on the outcomes of SAT candidates who enter different universities in the US and it was found that, generally speaking, the SAT score is a better predictor of wealth and success in life than the quality and brand name of the school itself.
Now suppose Singaporeans get