Date of Award


Degree Name

Master of Arts



First Advisor

DiLalla, David


The Malingered Depression Scale (Md Scale; Steffan, Clopton, & Morgan, 2003) was recently developed for use with the MMPI-2 in attempts to distinguish individuals with genuine symptoms of depression from individuals who feign depression on the test. With respect to the Md scale, a relative lack of research and mixed findings regarding its utility are problematic; therefore, these issues were explored. The predictive and incremental validity of the Md scale were tested in this study to determine if use of the Md scale conferred a distinct predictive advantage over standard validity scales (e.g. F, FB, FP) in the differentiation between participants instructed to feign depression and participants who, prior to taking the MMPI-2, endorsed a significant number of depressive symptoms on a self-report measure. The Md scale demonstrated predictive and incremental validity in this study in distinguishing the two groups; however several limitations arose regarding use of the Md scale, most notably conceptual clarity within participant groups and problems regarding the use of cut scores.




This thesis is only available for download to the SIUC community. Current SIUC affiliates may also access this paper off campus by searching Dissertations & Theses @ Southern Illinois University Carbondale from ProQuest. Others should contact the interlibrary loan department of your local library or contact ProQuest's Dissertation Express service.