This paper is a comparison of two groups of adolescent sexual offenders receiving different types of therapy; one group participated in Treatment As Usual (TAU), which is a Cognitive Behavioral Therapy (CBT) based approach, and the other group engaged in Mode Deactivation Therapy (MDT). The data presented is reflective of treatment comparisons not a research protocol. The results are descriptive and not necessarily comparison research. MDT is an empirically based therapy, based on CBT, Dialectical Behavioral Therapy (DBT; Linehan, 1993), and Functional Analytic Psychotherapy (FAP; Kohlenberg & Tsai, 1993), recently implemented in the Behavioral Studies Program, existing in Portsmouth, Virginia. MDT is a methodology that systematically assesses and expands underlying compound core beliefs that are a product of their unconscious experience merging with their cognitive processing, acceptance, balance, and validation. By addressing these beliefs, MDT examines underlying perceptions that may be applicable to setting in motion the mode related charge of aberrant schemas, that enable the behavior integration of DBT principles (Beck, 1996; Nezu et a], 1998). The MDT system also implements the Case Conceptualization method based an adaptation of the Beck (1996) suggested methodology of mode deactivation. Results suggest that MDT may be more effective in this treatment research than TAU, evident by reduced internal distress, resulting from various psychological disorders, and reduced sex offending risk.