School Library Journal just published a news item on the fourth Colorado school library impact study, Change in School Librarian Staffing Linked with Change in CSAP Reading Performance, 2005 to 2011.

Find the new SLJ news item here.

In addition to confirming earlier Colorado studies, this one also follows up on a September 2011 SLJ cover story, Something to Shout About, by confirming that cutting school librarian positions has a negative impact on student achievement.

Find the full study report here.