1. Aalto, A. M., Elovainio, M., Kivimäki, M., Uutela, A., & Pirkola, S. (2012). The Beck Depression Inventory and General Health Questionnaire as measures of depression in the general population: a validation study using the Composite International Diagnostic Interview as the gold standard. Psychiatry Research, 197(1–2), 163–171.
2. Adlaf, E. M., Gliksman, L., Demers, A., & Newton-Taylor, B. (2001). The prevalence of elevatedpsychological distress among Canadian undergraduates: findings from the 1998 Canadian Campus Survey. Journal of American College Health, 50(2), 6p. Retrieved from http://content.epnet.com/ContentServer.asp?T=P&P=AN&K=5346826&EbscoContent=dGJyMNLr40SeprY4y9f3OLCmr0qeprFSsaa4Sa%2BWxWXS&ContentCustomer=dGJyMO3p6ofh5eqEuePfgeyx%2BEu3q64A&D=aph.
3. Atkinsen, T. (1982). The stability and validity of quality of life measures. Social Science and Medicine, 10, 113–132.
4. Cantril, H. (1965). The pattern of human concerns. New Brunswick, NJ: Rutgers University Press.
5. Cohen, J. (1992). A power primer. Psychological Bulletin, 112(1), 155–159.