Kirk, R., Vance, J. and Gardner, J. (2010). The impact of library instruction on freshman performance & retention. Proceedings from Library Assessment Conference 2010: Building Effective, Sustainable, Practical Assessment. Baltimore, MD: Association of Research Libraries. http://libraryassessment.org/bm~doc/kirk_rachel.pdf
The powerpoint slides of this presentation concluded that receipt of library instruction made no difference in the freshman-to-sophmore retention rates. Conclusion: advancing GPA had the greatest impact on retention.