The Millon Adolescent Clinical Inventory (MACI) is a unique adolescent instrument that attempts to delineate between personality and acute symptoms. This study sought to explore typologies based on the Personality Pattern scales of theMACI in a sample of detained male juvenile offenders (N = 103). A Ward’s method cluster analysis yielded a four-cluster solution, and each cluster was provided a clinically relevant label: (a) disruptive, antisocials; (b) agreeable, antisocials; (c) anxious, prosocials; and (d) reactive, depressives. The largest group consisted of the reactive depressives (n = 41). This suggests the importance of considering the role of internalizing problems as a conduit to delinquency in addition to antisocial personality. No interaction between cluster membership and offense history or race was found.
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