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An integration of the Machiavellianism (MACH) and psychopathy constructs based on a dimensional view of personality and personality disorders and a recognition of B. Karpman's (1941, 1948) conceptual distinction between primary and secondary psychopathy is presented. Positive associations between MACH and both primary and secondary psychopathy were found. It is concluded that the Mach-IV is a global measure of psychopathy in noninstitutionalized populations (i.e., one that assesses but confounds both primary and secondary psychopathy) and that the primary differences between MACH and psychopathy are not traceable to substantive theoretical issues but to the different professional affiliations they are associated with: personality and social psychology and clinical psychology, respectively.
McHoskey et al. (Thu,) studied this question.