There are studies that show Montessori students tend to have better executive function, better working memory, and no significant difference in creativity. I'm not aware of any that look at lifetime income or anything like that.
I'm not exactly sure, but measuring performance on education tests as a child is just a proxy for the whole point of education and raising children and it could even be backwards.
What would those be and how do we measure them?
There are studies that show Montessori students tend to have better executive function, better working memory, and no significant difference in creativity. I'm not aware of any that look at lifetime income or anything like that.