Abstract
The purpose of this study was to examine common and unique factors influencing implementation process for two evidence-based interventions for children with autism spectrum disorder (ASD) in mental health and education service contexts. This study prospectively collected qualitative data from intervention developers and research staff on the implementation process within the context of two separate ASD intervention effectiveness trials. Results reveal common and unique factors influencing implementation in both study contexts. Implementation leadership and provider attitudes and motivation emerge as key influences on implementation across systems. These findings provide promising targets for modular implementation interventions that can be leveraged within growing, large-scale translation efforts in usual care.