Rossi, P. H., Lipsey, M. W., & Freeman, H. E. (2004). Evaluation: A systematic 
    
approach (7th ed.). Thousand Oaks, CA: Sage Publications.
  Light, R. J., Singer, J. D., & Willett, J. B. (1990). By design: Planning research on higher education. Cambridge, MA: Harvard University Press.
  Denzin, N. K., & Lincoln, Y. S. (Eds.). (2005). The SAGE handbook of qualitative research. Thousand Oaks, CA: Sage Publications.
  Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and quasi-experimental designs for generalized causal 
    
inference. Boston: Houghton-Mifflin. 
  Lawrenz, F. & Huffman, D. (2006). Methodological pluralism: The gold standard of STEM evaluation. New Directions for Evaluation, 109:19-34.
  Frechtling, J. (2002). The 2002 user-friendly handbook for project evaluation. 
    
Arlington, VA: NSF. Available at http://www.nsf.gov/pubs/2002/nsf02057/nsf02057.pdf
  Frechtling, J., & Sharp, L. (1997). The user-friendly handbook for mixed-method evaluations. 
    
NSF 97-153. Arlington, VA: NSF. Available at http://www.nsf.gov/pubs/1997/nsf97153/start.htm
  Geisinger, K.F., Spies, R.A, Carlson, J. F., & Plake, B. S. (Eds.) (2007). The seventeenth mental measurements yearbook. Lincoln, NE: Buros Institute of Mental Measurements.
  Pellegrino, J. W., Chudowsky, N., & Glaser, R. (2001). Knowing what students know: the science 
    
and design of educational assessment. Washington, DC: National Academy Press.