Machiavellianism as a crucial Dark Tetrad trait for the prediction of life-course criminal behavior

The Dark Tetrad (Machiavellianism, psychopathy, narcissism, and sadism) is a taxonomy of personality dispositions toward immoral, antisocial, and antagonistic behavior; still, its predictive power in the domain of criminal behavior is rarely tested. In the present research, we analyzed the associations between the Dark Tetrad and several indicators of criminal behavior (onset of criminal behavior, juvenile correctional measures, problematic use of psychoactive substances [PUPS], penal recidivism, number of convictions, violent offences, and the risk of future recidivism) in a sample of Serbian prisoners (N = 471). While all dark traits were positively associated with criminal behavior indicators on a zero-order level (except violent offences), regression analyses identified Machiavellianism as the most prominent predictor. Psychopathy positively predicted PUPS, while narcissism had a negative contribution to PUPS and penal recidivism. Interactions with the participants' sex showed that sadism represents a risk factor for females regarding early offences and PUPS, while Machiavellianism elevates the chance of repeated prison sentences for men. Finally, the structural model showed that juvenile offending mediates the association between Machiavellianism and general criminal recidivism. Findings showed the fruitfulness of assessing the Dark Tetrad traits in order to predict various aspects of criminal behavior.