http://www.lrs.org/data-tools/school-libraries/impact-studies/
This is a clearinghouse of links to studies at the state and national levels.
http://www.ala.org/aasl/research
http://keithcurrylance.com/school-library-impact-studies/
Link to the 2013 study demonstrating correlation between strong school libraries/librarians and test scores.
http://keithcurrylance.com/school-library-impact-studies/
This is the study that really stands at the center of the research about test scores and libraries.
http://www.ala.org/aasl/research
AASL (American Association of School Librarians) offers links to research as well.
http://www.cde.ca.gov/ci/cr/lb/research.asp
More links to more studies.
Please share some of the highlights of the research with your administrative team. Librarians make a difference.
More to come.