That you actually believe thats how the study was conducted tells me a lot.
I didn't say that is how the study was conducted, now did I?
I am saying that there is no valid comparison.
You can only go by averages unless of course you want to do an individual survey of every school in the nation.
No. They were comparing different countries.
And how the hell did they come up with the numbers?
By average obviously.
Which would be the most accurate measure; the mean or the median? Most people use median for salaries because the long-term teachers skew the data because of their seniority. In my department, we have 3 teachers with about 17-28 years of service and 4 with less than 8 years, and two of those have less than 5 years.
You still have to use averages.