productiveScholastic Study Finds Smaller School Librarian Staff Results In Lower NAEP Reading Scores
http://www.ischoolguide.com/articles/32724/20151106/scholastic-study-school-librarian-naep-reading-scores.htm
Impact of School Libraries on Student Achievement: A Review of the Research.
http://eric.ed.gov/?id=ED482253
The Impact of School Library Media Centers on Academic Achievement
http://eric.ed.gov/?id=EJ483815
Scientifically Based Research on School Libraries and Academic Achievement
http://search.proquest.com/openview/1e2420b03e853d0fdc26af20690eceb9/1?pq-origsite=gscholar
Latest Study: A full-time school librarian makes a critical difference in boosting student achievement
http://www.slj.com/2013/03/research/librarian-required-a-new-study-shows-that-a-full-time-school-librarian-makes-a-critical-difference-in-boosting-student-achievement/
NY State Research on School Libraries
http://www.nysl.nysed.gov/libdev/nyla/nycc_school_library_brief.pdf
School Libraries Impact Studies
https://www.lrs.org/data-tools/school-libraries/impact-studies/
Strong School Libraries Build Strong Students
http://www.ala.org/aasl/sites/ala.org.aasl/files/content/aaslissues/advocacy/AASL_infographic.pdf
School Libraries and Their Impact on Student Performance
http://www.ascd.org/publications/researchbrief/v1n18/toc.aspx
School Library Impact Studies
http://keithcurrylance.com/school-library-impact-studies/
School Libraries and Student Achievement
http://www.teacherlibrarian.com/wp-content/uploads/2013/04/tl-poster.pdf
This is not an exhaustive list, but it should be a go-to starting point for anyone who wants to show the importance of a school library and a certified librarian.
