According to William Bainbridge, president of School Match, a firm that helps individuals and corporations evaluate 15,892 public school systems and 14,855 private schools; the level of expenditures for library and media services has the highest correlation with student achievement (New Jersey School Board Association Newsletter, 1995). Keith Curry Lance (2004) of the Colorado State Library found that schools with higher rated libraries have 10 to 18 percent better test scores than schools with lower rated libraries.