I bet that the correlation is much stronger for teacher starting salaries than for the 15 year in salaries that the study mentioned. What really matters is attracting the best people to be teachers, and when people look at jobs they mostly look at starting salaries.
But for some reason in the US we tend to have a very steep seniority based pay scale, with a far greater inequality between old and young teachers than you see in pretty much any other industry. You could argue that more experienced teachers are better, but studies show that experience stops mattering after 5 years, and it was also my subjective experience in school that older teachers didn't seem to be any better at teaching.
But for some reason in the US we tend to have a very steep seniority based pay scale, with a far greater inequality between old and young teachers than you see in pretty much any other industry. You could argue that more experienced teachers are better, but studies show that experience stops mattering after 5 years, and it was also my subjective experience in school that older teachers didn't seem to be any better at teaching.