Examining the Convergent Validity of the Triarchic Psychopathy Measure Using a Sample of Incarcerated and on Probation Lithuanian Juveniles

The Triarchic Psychopathy Measure (TriPM) is based on the triarchic psychopathy model proposed by Patrick, Fowles, and Krueger in 2009. This paper assesses the convergent validity of TriPM using a number of measures for a sample of adolescents who are either incarcerated or on probation. These included the Short-Term Assessment of Risk and Treatability: Adolescent Version (START: AV); the Subtypes of Antisocial Behavior Questionnaire (STAB); the Criminal Sentiments Scale-Modified (CSS-M); and the Measure of Criminal Social Identity (MCSI). The results showed significant differences between groups that are incarcerated and those on probation, with the incarcerated sample of juveniles exhibiting higher ratings in terms of Disinhibition and lower ratings for Boldness. The TriPM measures examined also show expected positive correlations with concurrent measures related to criminal behavior in both of the aforementioned samples of juveniles. A different pattern of correlations was observed between Boldness and STAB scales, with a large positive correlation found in the incarcerated sample, while no significant correlations were detected in the probation sample. The results support the usefulness of TriPM in assessing the psychopathy in samples of the juvenile offenders chosen for our research purposes.

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