Do school libraries improve test scores?

The Connection Between School Media Centers and Standardized Tests

Why are school libraries important?  Research shows that students score significantly higher on standardized tests when their school library is active, accessible, and well-staffed. Learn more at:

http://www.ala.org/ala/aasl/aaslproftools/resourceguides/studentachievement.cfm

http://www.educationworld.com/a_admin/admin/admin178.shtml

http://www.teacherlibrarian.com/tltoolkit/what_works/works_v31_1.html