DOD Regulating Together Intervention

144 children ages 8-12 years old with autism spectrum disorder will be enrolled in the study and randomized to Regulating Together (RT) or Achieving Independence and Mastery in School (AIMS) groups. Participants will complete assessments at five time points: Screen (T1) Week 0 - where they will complete consent; Baseline (T2); Week 7: Post Active Treatment (includes semi-structured interviews) (T3); Week 16: Post Generalization (T4); Week 29: Final outcome visit (T5). Participants will receive 5 weeks of intervention, twice per week, following the T2 visit.