“…Staff development through didactic training is a core implementation strategy to address implementation gaps (Lyon et al, 2017 ; Owens et al, 2014 ). Pre-implementation didactic training, however, is often insufficient or suboptimal at promoting teachers’ EBPP adoption (i.e., initial uptake) and fidelity (i.e., adherence to core practices) in pursuit of achieving meaningful changes in youth outcomes (Joyce & Showers, 2002 ; Merle et al, 2022a , 2022b ; Reinke et al, 2008 ). Only around 40% of teachers adopt a new practice with training alone (Sanetti et al, 2013 ), and among those who do adopt, fidelity deteriorates within 10 days of adoption (Reinke et al., 2008 ; Sanetti & Kratochwill, 2009 ).…”