Pilot of Unstuck and On Target in Ecuador

The goal of this clinical trial is to learn about the effects of the Spanish-language intervention, Unstuck and On Target (SL-Unstuck), in Spanish-speaking families in Ecuador of children 8-11 years old with attention deficit hyperactivity disorder (ADHD) or autism. The main objectives of this study are: * To assess the feasibility and acceptability of SL-Unstuck in Ecuador. * Compare SL-Unstuck child and caregiver outcomes to waitlist controls in Ecuador. Researchers will compare families who are randomized to receive the intervention for 8 weeks to a waitlist control for 8 weeks prior to receiving the intervention. Participants will: * Complete pre- and post- intervention measures * Receive the Spanish-language Unstuck and On Target intervention for 8 weeks * Participate in focus group to gather qualitative feedback