They're not useless, but it's rather that when everyone's scoring high, it's not the best measure to differentiate candidates.
What happens in other countries, where they only use grades/GPA, is that you start using more decimals - but then again, that's only useful when the size/population of "perfect" scores is low enough.
If you have 10000 students with a perfect 4.0, and 2000 spots, then it's obviously impossible to just use grades - so it kinda loses its function for selection.
What happens in other countries, where they only use grades/GPA, is that you start using more decimals - but then again, that's only useful when the size/population of "perfect" scores is low enough.
If you have 10000 students with a perfect 4.0, and 2000 spots, then it's obviously impossible to just use grades - so it kinda loses its function for selection.