Graham, J. R., Barthlow, D. L., Stein, L. A. R., Ben Porath, Y. S., & McNulty, J. L. (2002). Assessing general maladjustment with the MMPI-2. Journal of Personality Assessment, 78(2), 334–347. http://www.erlbaum.com/Journals/journals/JPA/jpa.htm