America's Most Challenging High Schools
The Washington Post's annual rankings of how successfully schools challenge their students.
By Jay Mathews
5, 2017
America's Most Challenging High Schools ranks schools through an index formula that's a simple ratio: the number of Advanced Placement, International Baccalaureate and Advanced International Certificate of Education tests given at a school each year, divided by the number of seniors who graduated that year. A ratio of 1.000 means the school had as many tests as graduates.