In Alaska, the percentage of students scoring proficient or above on reading tests was higher for schools with more hours per typical week of professional librarian staffing; more staff time spent weekly delivering information literacy instruction to students, planning cooperatively with teachers, and providing in-service training to teachers; collection development policies that address the issue of reconsideration requests or challenges to library materials; computers with modem capability (to access the Internet); and a relationship—formal or informal—with the public library. In addition to these direct predictors of test scores, the Alaska study identified one series of relationships worthy of note: Schools with more librarian staffing spend more time teaching information literacy, resulting in more student visits to library media centers and, in turn, higher reading scores.In Pennsylvania, higher average reading scores for schools were associated with the presence of school librarians with more hours per week of support staff; higher expenditures on the library media program; larger collections of information resources (e.g., books, periodical subscriptions, Access Pennsylvania and other databases); more computers, both in the library media center and throughout the school, that provide access to information resources (e.g., licensed databases, the Internet); and spending more library media staff time integrating the teaching of information literacy into the school's curriculum and approach to addressing academic standards (8-9).
Three out of four secondary schools (almost 75 percent) spending average or above amounts of time on cooperative planning were schools with higher-achieving students
More than three out of four elementary schools (over 75 percent) spending an average or above amounts of time on cooperative planning were schools with higher-achieving students.
Comparison of means analysis found that, among elementary schools, those with higher test scores averaged 22 percent of librarian hours spent delivering library/IL instruction, compared with only 13 percent of low-achievement schools.