RecruitingBehavioural interventionA Trial of the Launching! to Adulthood ProgramThe purpose of this study is to evaluate the effectiveness of the Launching intervention (Pagan et al., 2024) in improving adaptive functioning, transition readiness, and social cognition in young adults with Autism Spectrum Disorder (ASD), compared to a delayed treatment control group, to examine whether the Launching intervention leads to improvements in executive functioning, co-occurring mental health symptoms, and quality of life, as measured by caregiver and self-report assessments, to assess the maintenance of treatment gains 12 weeks post-treatment and to replicate the findings of the Launching pilot study in an independent sample of young adults with ASD.