“…Many of the successes associated with PBIS implementation in Maryland had occurred at the elementary or middle school level and had focused on universal (school-wide) supports, rather than more intensive targeted and indicated interventions (Bradshaw et al, 2012, 2014). Similarly, the most rigorous research supporting the impacts of the Tier 1 behavioral model had been with regard to the school-wide supports in elementary schools specifically (e.g., Bradshaw et al, 2010; Bradshaw, Koth, et al, 2008, 2009; Horner et al, 2009), although more recent research demonstrates positive impacts in secondary schools (e.g., Pas, Ryoo et al, 2019; also see a review by Lee & Gage, 2020). As a result, there was a desire to expand both into high schools and beyond the Tier 1 supports, providing support for the implementation Tiers 2 and 3 (Bradshaw et al, 2014).…”