Tier 2, targeted, group-based interventions are designed to serve students who have not responded to Tier 1 interventions. The 10-15% of students in Tier 2 are considered at-risk for more severe behavioral problems and/or academic deficits (Lewis & Sugai, 1999; Sugai & Horner, 2002).
Wanting to build Tier 2? Take time to think through readiness. It will help you build more successful systems and practices.