This application compares the effectiveness of a conventional Parent Group intervention to Mindfulness- Based Stress Reduction (MBSR) in parents of children with autism spectrum disorders (ASD) and other disabilities. Parent groups are widely-used to provide information, emotional support, education and advocacy. MBSR is efficacious for people with medical, psychiatric or other concerns, and teaches stress reduction through mindfulness training and practice. In contrast to conventional parent groups, the investigators' studies suggest that mindfulness-based interventions may be particularly effective in reducing stress and improving the health and mental health of parents of children with disabilities. The investigators will assess parent factors that may correlate with intervention efficacy in the 2 treatment arms.