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Frels, R. K., & Onwuegbuzie, A. J. (2013). Administering quantitative instruments with qualitative interviews: A mixed research approach. Journal of Counseling and Development, 91(2), 184–194. Retrieved from http://onlinelibrary.wiley.com/doi/10.1002/j.1556-6676.2013.00085.x/abstract