• Clinical Severity Rating (CSR) on the Anxiety Disorders Interview Schedule for DSM-IV, Child and Parent Versions (ADIS-IV-C/P) [ Time Frame: Measured before and after treatment and at Months 3 and 6 of follow-up ] [ Designated as safety issue: No ]
  

• Positive and Negative Affect Scale (PANAS) [ Time Frame: Measured before and after treatment and at Months 3 and 6 of follow-up ] [ Designated as safety issue: No ]
  
• Life Interference Measure (LIM) [ Time Frame: Measured before and after treatment and at all other assessment points ] [ Designated as safety issue: No ]
  
• Child Anxiety Sensitivity Index (CASI) [ Time Frame: Measured before and after treatment and at all other assessment points ] [ Designated as safety issue: No ]
  
• Depression Symptom Inventory-Suicidality Subscale (DSI-SS) [ Time Frame: Measured before, during, and after treatment and at Months 3 and 6 of follow-up ] [ Designated as safety issue: Yes ]
  
• Child Behavior Checklist (CBCL) [ Time Frame: Measured before and after treatment and at Months 3 and 6 of follow-up ] [ Designated as safety issue: No ]
  
• Emotion Regulation Questionnaire (ERQ-CA & ERQ-2) [ Time Frame: Measured before and after treatment and at all other assessment points ] [ Designated as safety issue: No ]
  
• Multidimensional Adolescent Satisfaction Scale (MASS-21) [ Time Frame: Measured before and after treatment and at all other assessment points ] [ Designated as safety issue: No ]
  
• Children's Automatic Thoughts Scale (CATS) [ Time Frame: Measured before and after treatment and at all other assessment points ] [ Designated as safety issue: No ]
  
• University of Rhode Island Change Assessment Scale (URICA) [ Time Frame: Measured before and after treatment and at all other assessment points ] [ Designated as safety issue: No ]
  

Anxiety and depression are among the most prevalent psychiatric disorders in youth. Adolescents with anxiety or depression experience persistent emotional distress that can cause problems with school, family, and friends. In addition, anxiety and depressive disorders commonly co-exist, causing further distress for those affected. If left untreated, the difficulties associated with these disorders can persist into adulthood. Fortunately, anxiety and depression are highly treatable using a combination of medications and forms of psychotherapy, but many youth in community settings are unlikely to receive these treatments. An emotion-focused cognitive behavioral treatment, specifically designed to meet a broad range of emotional and developmental needs of adolescents, may provide a better way of translating effective treatment components to community settings. This study will evaluate the effectiveness of an emotion-focused cognitive behavioral treatment program, called the Adolescent Emotional Disorders Treatment Protocol, for adolescents with anxiety or unipolar depressive disorders.

Participants in this study will be assigned to receive either immediate or delayed emotion-focused cognitive behavioral treatment program sessions. Study participation will last 12 months after beginning treatment. Upon initiation of treatment, parent and child participants will undergo initial assessments that will include questionnaires about anxiety, worry, and depression; an interview pertaining to the child participant's anxiety and depression; and a discussion task. Both parent and child participants will then attend up to 24 weekly treatment sessions, lasting 60 minutes each. During sessions, child participants will learn skills to think differently about situations causing anxiety, cope with emotions, and act in healthy ways in anxiety- and depression-provoking situations. Throughout the course of treatment, parent and child participants will be asked to keep records of the child's anxiety and depression. Child participants will also be given at-home assignments to practice skills learned in treatment sessions. During and after treatment, participants will complete questionnaires about their thoughts on the treatment sessions. Participants will repeat the initial assessments immediately after the last treatment session and at Months 3 and 6 of follow-up.