districts (at $17,051) in 2011. 60% of New Jersey's education aid goes to the Abbotts.

One evaluation concluded that the effect on academic achievement in Abbott districts was greater in lower grades and declined in subsequent grades, until there was no effect in high school. The achievement gap in math test scores for fourth graders narrowed from 31 points in 1999 to 19 points in 2007, and on reading tests from 22 points in 2001 to 15 points in 2007. The gap in eighth grade math narrowed less, from 30 points in 2000 to 26 points in 2008,