The SI (selection index) is 1/10 the sum of the Math score plus two times the Reading/Writing score so for NM (National Merit) purposes
Would you care to elaborate please? I must be being spectacularly dense/obtuse this morning because I am understanding that statement to mean that literacy is weighted 20 times more importantly than numeracy 1:20. In other words, that a person's Maths score will at most count for 1/21 of their total ( assuming ceilings on both sections are reached). This doesn't sound right - what am I missing?
