School-based Support for Pre-school Aged Children With Developmental Disabilities and Delays

Participants (n=320) will be randomized to either: 1) 6 months of PreM (intervention group) or 2) a waitlist control arm receiving the intervention after a 6-month delay. All participants will be followed for 12 months with data collection occurring at 4 timepoints (baseline, 3-, 6- and 12-months). There will also be a simultaneously conducted mixed-methods implementation evaluation focusing on implementation outcomes to serve as indicators for implementation success; measures of implementation quality; and intermediate outcomes to understand and address successes and failures in relation to clinical outcomes.