More than the sum of its parts: a multiple case study on the implementation of RTI in five sites
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Using a multiple-gating procedure, 5 research sites (3 elementary and 2 middle schools) were identified as implementing a Response to Intervention (RTI) framework. This study uses a multiple case study design to describe the RTI implementation in reading at these 5 sites. Findings suggest that the sites studied are utilizing a hybrid model (a combination of standard treatment protocol and problem solving models) for developing and assigning reading interventions. The five sites implemented critical components of RTI (universal screening, progress monitoring, scientifically-based core curriculum, and a multi-tiered system of interventions) similarly, despite differences in campus-level variables. However, no site implemented a process for assessing the fidelity of implementation of the RTI framework. They also followed state and/or district guidelines on the use of RTI data in special education eligibility decisions.