A Waitlist-Controlled Trial of the Unified Protocol for the Treatment of Emotional Disorders in Adolescents

All participants will be offered the UP-A intervention, inclusive of 8 and 21 weekly sessions of an emotion-focused treatment with cognitive-behavioral elements, either immediately following randomization or after an 8-week delayed treatment waitlist. The UP-A sessions are delivered in a flexible manner. Several of the UP-A's treatment elements are fixed and received by all participants (psychoeducation about emotions and emotional behavior, awareness and mindfulness skills, antecedent cognitive reappraisal/problem-solving skills, emotion exposure strategies, and relapse prevention skills), although applied for varying numbers of sessions depending on clinical need. Other strategies (motivational enhancement, parenting strategies and crisis management strategies) are applied on an as-needed basis based on client needs.