Early in the 16th century, Niccolo Machiavelli acted as chief political advisor to the ruling Medici family in Florence, Italy. The details of his counsel are well known because Machiavelli laid them out for posterity in his 1513 book,
The Prince. The gist of his advice for maintaining political control is captured in the phrase "the end justifies the means." According to Machiavelli, a ruler with a clear agenda should be open to any and all effective tactics, including manipulative interpersonal strategies such as flattery and lying. Richard Christie, noticed that Machiavelli's political strategies had parallels in people's everyday social behavior. Christie and his colleagues at Columbia University identified a corresponding personality syndrome, which they dubbed Machiavellianism. The label was chosen to capture a duplicitous interpersonal style assumed to emerge from a broader network of cynical beliefs and pragmatic morality. Christie applied his psychometric expertise to develop a series of questionnaires designed to tap individual differences in Machiavellianism. Those questionnaires, along with the research supporting their construct validity, were presented in Christie and Geis's (1970) book,
Studies in Machiavellianism. Of these measures, by far the most popular has been the Mach IV. Used in more than 2,000 cited studies, the scale has proved valuable in studying manipulative tendencies among student, community, and worker samples. The follow-up version, Mach V, was designed as an improvement but, in the end, raised more problems than it solved. Our strategy here is to summarize its conclusions and springboard into the subsequent research. Our emphasis is on the Christie tradition primarily focused on research using his scales. We conclude by discussing new directions in theory and research on Machiavellianism. (PsycINFO Database Record (c) 2012 APA, all rights reserved)