An empirical classification of non-violent offenders using the MMPI

MMPI protocols of 87 non-violent male offenders were cluster analysed on eight experimental scales. Four clusters emerged. These were compared with the findings from 105 prisoners with convictions for violence. Clusters tended to be similar across the two samples with the exception of the ‘Inhibited’ offender. This non-violent group tended to be less psychiatrically disturbed, as well as less introverted, anxious and hostile than its corresponding violent cluster.