Comparing Two Different Emotion Therapies for Autistic Youth and Young Adults

This study will compare the effectiveness of two transdiagnostic interventions for autistic adolescents and young adults - an intervention in widespread use among non-autistic populations (The Unified Protocol; UP) versus an autism-specific intervention (The Emotion Awareness and Skills Enhancement Program; EASE). The UP and EASE are ideal comparators because they are structurally equivalent and transdiagnostic - both shown to improve mental health outcomes that stakeholders identify as important, such as depression, irritability, and anxiety. The investigators will partner with 12 different community clinics in Pennsylvania and Alabama to recruit participants and facilitate the interventions. Each clinic will be randomized to use either UP or EASE. The investigators will look at effectiveness of the treatments, as well as the feasibility, benefits and harms.