Average v. Median Salary
Posted: Tue Feb 23, 2010 12:19 am
Which one matters more?
I feel like average skews and median is more accurate. Is this correct?
I feel like average skews and median is more accurate. Is this correct?
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Halibut6 wrote:I think median is a better measure, as long as reported salary information is absolutely accurate.
Mostly right. The Median can still be skewed if you have small percent reporting starting salary. Anything below 90 or 85 percent is what I consider a "small percent".cardnal124 wrote:Mean salary skews data if there are a significant number of outliers, i.e. a lot of salaries at 160k or 40k.
Median gives a better feel for the middle salary people are actually making, and is not skewed by outliers, so is probably a better measure.
I have always questioned the bolded. If I had a horrible salary, I think I would make extra sure to report it due to bitterness towards my school. Maybe that's just me though; it's absolutely true that a median salary with a low percentage of grads reporting should not be trusted too much because you have absolutely idea what the non-reporting grads are making/doing.darknightbegins wrote:The median is likely what you can expect coming out from a law school. You are right that an average can skew more since, by definition, it is a combination of all the salaries students report then divided by the number reported. The median is a single score and is less likely to skew. People who graduate from law school tend to have a vast range of salaries they pull down, from people who can't even get a job and are waiting tables to those doing public interest work to the BigLaw job. Look at the median.
Also, check how much of the class is reporting a salary. Some schools are up in the 90+ percent. If it is any lower than that than even your median score could be skewed. Salary data is self-reported and those who have a bad starting salary are less likely to report it. So if I look at a school that has a median starting salary of 80K but only 70 percent is reporting and look at a school that has a median starting salary of 60K but 95 percent is reporting I am likely to trust I'll be pulling down 60K at the second law school. At the first school I am more inclined to believe I'll be making quite a bit less than 70K coming out.
Elementary statistics my dear Watson! Your undergrad never taught you median vs avg?
Have you seen the US News salary data? 99% of schools have less than 80% reporting. Some have less than 40%.[darknightbegins wrote:Mostly right. The Median can still be skewed if you have small percent reporting starting salary. Anything below 90 or 85 percent is what I consider a "small percent".cardnal124 wrote:Mean salary skews data if there are a significant number of outliers, i.e. a lot of salaries at 160k or 40k.
Median gives a better feel for the middle salary people are actually making, and is not skewed by outliers, so is probably a better measure.
But in that case, the mean wouldn't be good either, so median could still be the better measure, although neither are probably accurate.darknightbegins wrote:Mostly right. The Median can still be skewed if you have small percent reporting starting salary. Anything below 90 or 85 percent is what I consider a "small percent".cardnal124 wrote:Mean salary skews data if there are a significant number of outliers, i.e. a lot of salaries at 160k or 40k.
Median gives a better feel for the middle salary people are actually making, and is not skewed by outliers, so is probably a better measure.
+1Rowinguy2009 wrote: I have always questioned the bolded. If I had a horrible salary, I think I would make extra sure to report it due to bitterness towards my school. Maybe that's just me though; it's absolutely true that a median salary with a low percentage of grads reporting should not be trusted too much because you have absolutely idea what the non-reporting grads are making/doing.
I wouldn't argue that the mean would not be skewed just that the median would also be skewed. Overall if you don't have at least 90 percent of the class reporting I would be very suspicious of the starting salary for the school.cardnal124 wrote:But in that case, the mean wouldn't be good either, so median could still be the better measure, although neither are probably accurate.darknightbegins wrote:Mostly right. The Median can still be skewed if you have small percent reporting starting salary. Anything below 90 or 85 percent is what I consider a "small percent".cardnal124 wrote:Mean salary skews data if there are a significant number of outliers, i.e. a lot of salaries at 160k or 40k.
Median gives a better feel for the middle salary people are actually making, and is not skewed by outliers, so is probably a better measure.
Rowinguy2009 wrote:
I have always questioned the bolded. If I had a horrible salary, I think I would make extra sure to report it due to bitterness towards my school. Maybe that's just me though; it's absolutely true that a median salary with a low percentage of grads reporting should not be trusted too much because you have absolutely idea what the non-reporting grads are making/doing.