Originally developed in the 1970s and now revised for the MMPI-2, the Megargee System provides a method for classifying criminal offenders into groups based on their MMPI-2 profiles. This volume describes how the system was originally derived and validated and gives instructions on how to classify the original MMPI and MMPI-2 profiles of male and female criminal offenders. It integrates the findings of more than one hundred independent studies with previously unpublished original research investigating the characteristics of each of the system’s empirically derived male and female types. On the basis of these data, the authors recommend the optimal setting, change agent, and treatment program for each type of offender.