Multitier prevention systems consist of a continuum of interventions to address the needs of all students. Within such systems, Tier I supports are in place for all students and are designed to enhance prosocial (social behavior interventions) and academic (instructional interventions) skills. Tier II interventions supplement the Tier I…

The concept of "implementation fidelity" is broadly used to capture the extent to which an intervention is executed as intended by the designers of the intervention (Century, Rudnick, & Freeman, 2010; Huntley, 2005, McNaught, Tarr, & Sears, 2010, Munter, 2010). Though implementation fidelity instruments are often used to assess…