Income inequality predicts science test scores, but not the way you might imagine
More than half of all children attending public schools in the United States are living in poverty. As the unequal distribution of wealth has become new norm, science education has stagnated. Perhaps these two might be connected to one another, reflecting a global pattern among developed nations?
Think again:

This relationship is the opposite of what I expected to find among developed nations.
This is fascinating, and troubling.
After looking at a few other variables, I’ve realized that I can’t even come close to understanding it, yet. Yes, higher Gini index values means greater income inequality: a greater gap between rich and poor.
Sources: http://en.wikipedia.org/wiki/List_of_countries_by_income_equality; http://www.businessinsider.com/pisa-rankings-2013-12