18 Association of Research Libraries Research Library Issues 290 — 2017 15 Oakleaf, The Value of Academic Libraries, 118. 16 Megan Oakleaf, “Are They Learning? Are We? Learning Outcomes and the Academic Library,” Library Quarterly 81, no. 1 (January 2011): 65. 17 Alexander W. Astin, What Matters in College: Four Critical Years Revisited (San Francisco: Jossey-Bass, 1993). 18 Tatiana Melguizo, Gregory S. Kienzl, and Mariana Alfonso, “Comparing the Educational Attainment of Community College Transfer Students and Four-Year College Rising Juniors Using Propensity Score Matching Methods,” Journal of Higher Education 82, no. 3 (May–June 2011): 265–291. 19 Paul W. Grimes and Marybeth F. Charters, “Library Use and the Undergraduate Economics Student,” College Student Journal 34, no. 4 (December 2000): 557–570 Krista M. Soria, Shane Nackerud, and Kate Peterson, “Socioeconomic Indicators Associated with First-Year College Students’ Use of Academic Libraries,” Journal of Academic Librarianship 41, no. 5 (September 2015): 636–643. 20 Soria, Nackerud, and Peterson, “Socioeconomic Indicators” Ethelene Whitmire, “Academic Library Performance Measures and Undergraduates’ Library Use and Educational Outcomes,” Library & Information Science Research 24, no. 2 (2002): 107–128. 21 Soria, Nackerud, and Peterson, “Socioeconomic Indicators” Ethelene Whitmire, “The Relationship between Undergraduates’ Background Characteristics and College Experiences and Their Academic Library Use,” College & Research Libraries 62, no. 6 (November 2001): 528–540. 22 Soria, Nackerud, and Peterson, “Socioeconomic Indicators.” 23 Ibid. 24 Chiteng Kot and Jones, “The Impact of Library Resource Utilization” Soria, Nackerud, and Peterson, “Socioeconomic Indicators.” 25 Ibid.