This study is an assessment of the impact of Alaska school librarians on academic achievement in the state's public schools. It examines the direct relationship between such staffing and student performance and identifies selected activities of library media staff that affect test scores. Other conditions of library media center operation were also considered as potential predictors of academic achievement. During the 1997-98 school year, library media centers in 211 Alaska public schools were surveyed about their staffing levels, hours of operation, staff activities, usage, technology, policies, and cooperation with public libraries. Each library media program characteristic was assessed as a potential predictor of academic achievement, and relationships among potential library media predictors that might create indirect effects on academic achievement were also examined. Recommendations for raising student achievement levels are included. Appendices include a bibliography, list of participants, copy of the questionnaire, a brochure entitled "A School Librarian Can Make a Difference!" and early results briefs. Although the findings, conclusions, and recommendations reported in this work are substantially the same as those of its original edition, this edition corrects typographical and transcription errors, eliminates unnecessary and misleading methodological information, clarifies ambiguous statements, corrects misinterpretations of statistical details, and contains citations accidentally left out of the original bibliography. (MES)