In the context of implementation of MTSS, fidelity is the extent to which school personnel are applying the core feathers of Multi-Tiered Systems of Support. Measuring fidelity of MTSS implementation allows for schools to:
The OTISS Fidelity Assessment measures a site's level of OTISS implementation across eight components:
The Tiered Fidelity Inventory (TFI) was created in order to provide a valid, reliable, and efficient measure of the extent to which school personnel are applying the core features of school-wide positive behavioral interventions and supports. It measures fidelity across all three tiers in the areas of teaming, implementation, and evaluation.