The gap between high and low-income students' test scores has increased 40 percent from the 1970s until the early 2000s. The gap for high and low-income young adult students' college enrollment and educational attainment has also grown. However, the education disparities between white and black students have remained the same(but still significant). Achievement gaps are more prominent in metropolitan areas because it is a highly segregated place. The achievement gap between black and white students is larger in areas that are highly segregated.