Statistics and data that point to positive trends in increasing the numbers of students who will graduate from high school may have a hopeful ring. Large numbers may show improving graduation rates, but these are easily manipulated. No matter what methods are used to reach these high numbers, there must also be corresponding statistics to show that students actually learn anything during their twelve years in school.

http://www.gainesville.com/article/20140525/OPINION03/140529813?Title=Sarah-McIntosh-High-school-diploma-gives-no-guarantee-of-success