USNWR why do they use median instead of mean?
Posted: Thu Apr 21, 2016 3:39 pm
Curious to know- obviously both methods have inherent flaws.
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Er, depends on the splitter.theconsigliere wrote:Median is a more robust statistic, i.e. it is much less responsive to outliers. Imagine how much it would suck to be a splitter if schools reported their means instead of medians.
People that score minimally below one stat and way above on another are hurt by using median instead of mean. Who would you expect to be a better law student: someone who was 0.05 above the GPA median and 1 point above the lsat median or someone who was 0.05 below the gpa median and 8 points above the lsat median?theconsigliere wrote:Median is a more robust statistic, i.e. it is much less responsive to outliers. Imagine how much it would suck to be a splitter if schools reported their means instead of medians.
I guess my comment was for "super" splitters, like someone with below a 3.3 GPA or a low 160s LSAT for a T14. I think those people would be in a lot of trouble if mean was used because unless their other stat is a 180 or a 4+ then there's not much of a chance they're going to be able to pick up one median as much as they drop the other.philepistemer wrote:People that score minimally below one stat and way above on another are hurt by using median instead of mean. Who would you expect to be a better law student: someone who was 0.05 above the GPA median and 1 point above the lsat median or someone who was 0.05 below the gpa median and 8 points above the lsat median?theconsigliere wrote:Median is a more robust statistic, i.e. it is much less responsive to outliers. Imagine how much it would suck to be a splitter if schools reported their means instead of medians.