This paper compares the results of two separate published studies regarding adolescent males with conduct disorders and/or personality disorders/traits. Both studies were published in the Behavior Analyst Today, Vol. 3, No. 4, Vol 5, No. 1, respectively. The concept is to evaluate two treatment research studies that represent "the best" practices for each intervention. The first paper in this comparison represented a group of 10 adolescents, treated with a manual -based cognitive behavior therapy (CBT) called Thought Change. The results of the study were promising at the time of the publication. The second paper was a group of 10 adolescent males at the same residential treatment center. There was one therapist who was involved in treatment in both studies, the first author of this paper. The second paper used mode deactivation therapy (MDT) (Apsche, Ward, & Evile 2001; Apsche & Ward 2002). Although both papers produced promising results, the potential usefulness of the comparison in the current paper is to examine what intervention might hold more promise for this typology of adolescents.