Traditionally class rankings have been used by high schools to determine valedictorians and salutatorians. These rankings have also been used by colleges to make admission decisions and for awarding scholarships. While there is no direct link between college rank and college admission, there is evidence that not using class rank can reduce stress for students and lessen the risks of taking rigorous and challenging courses in high school. According to the National Association for College Admission Counseling (NACAC), over half of high schools no longer use class rankings (CollegeBoard inspiring minds, "Class rank and college admissions") and fewer than 20% of colleges and universities say it is important for admission decisions. (Contains 20 online resources.)