Purpose <p>Challenging behaviors (CB), including aggression, tantrums, and noncompliance, are common among children with autism spectrum disorder (ASD) and can significantly affect family well-being and child development. This pilot study examined the effectiveness of a hybrid intervention model that combined early intervention service provider (EISP) coaching with parent-implemented, function-based behavior support strategies.</p> Method <p>Three EISPs delivered structured home visits that included video-based behavioral training modules to three families of young autistic children exhibiting persistent CB. A nonconcurrent multiple-probe across parent-child dyads design was used to evaluate parent fidelity in implementing behavior support plans and corresponding changes in child CB.</p> Results <p>Results indicated that exposure to video modules alone produced minimal improvements in parent fidelity. However, the addition of individualized EISP coaching led to immediate and sustained increases in parent fidelity, accompanied by notable reductions in child CB across all participants. Social validity data reflected high parental satisfaction with the intervention procedures and outcomes.</p> Conclusion <p>Findings support the feasibility and promise of scalable, family-centered models that integrate remote, video-based training with individualized in-home coaching. Such hybrid interventions may help bridge service gaps and enhance timely access to positive behavior support for families of young children with ASD.</p>