Now, in analyses of long-term data published in recent months, researchers are finding that while the achievement gap between white and black students has narrowed significantly over the past few decades, the gap between rich and poor students has grown substantially during the same period.
Certainly there is persuasive data, recently gathered by Sean F. Reardon of Stanford University and the Russell Sage Foundation, that demonstrates that "while the achievement gap between white and black students has narrowed significantly over the past few decades, the gap between rich and poor students has grown substantially during the same period".
Over the last decades, the gap between disciplinary dreams and real outcomes has been growing in the field of urban planning and urban design.
Mary Curnock Cook, Ucas chief executive, says that within a decade the gap between the number of men and women in higher education is likely to eclipse that between the numbers of students from wealthy and poor backgrounds, which has been steadily narrowing.
For three decades now, the gap between rich and poor has widened and, most recently, this is the result of skyrocketing incomes among the already super-rich.
[NCES digest] Scores on most standardized tests (for example, the National Assessment of Educational Progress) have trended upwards or stayed flat for decades, and the gap between demographic groups has narrowed, in some cases substantially.
According to this dominant narrative, if you want to take any meaningful action against the "big six" energy giants, and interfere with market forces, you must be some kind of unreconstructed Bolshevik – or at the very least a misguided leftie who wants to take the country back to the nightmare 1970s, the decade when the gap between rich and poor in Britain reached its lowest level in history.
The HER, seemingly one of the simplest electrochemical reactions, has served for decades to bridge the gap between fundamental electrocatalysis and practical catalyst design.
We all know that inequality has been increasing over recent decades, and that the gap between the richest and the poorest is so great that they may as well be living on different planets.
"We haven't built enough homes in this country for decades, and if the gap between the number of households forming and the number of new homes being built continues to grow, we are in danger of not being able to house our children," she said.
The findings underscore other studies indicating that income inequality has been on the rise for decades and that the gap between the rich and the poor is manifesting itself in America's neighborhoods.
