*Correction: An earlier version of the explanation for the graphic did not accurately explain how the state percentages are calculated.
Of U.S. high school seniors who graduated in 2013*, about 20 percent scored a three or higher on Advanced Placement Exams. The AP Exams are scored on a one through five scale. A score of three is seen as “qualified” or capable of college level work. In Missouri, fewer than 10 percent of seniors earned a three or above. Missouri ranks in the bottom five states for qualified AP scores. The College Board, which administers the tests, calculates state pass rates by dividing the number of students who scored three or above by the total number of graduating seniors in that state.*