Multi-level Prevention System

Multi-Level Prevention System

Multi-level prevention system includes three levels of intensity or prevention. The primary prevention level includes high quality core instruction. The secondary level includes evidence-based intervention(s) of moderate intensity. The tertiary prevention level includes individualized intervention(s) of increased intensity for students who show minimal response to secondary prevention.

At all levels, attention should be on fidelity of implementation, with consideration for cultural and linguistic responsiveness and recognition of student strengths.

The primary level may be known as Tier I, the secondary level  as Tier II, and the tertiary level as Tier III or intensive intervention. 

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Non-Center Resources


What is an evidence-based practice? How do I know if evidence shows that a practice will be right for my students? Many practitioners ask these critical questions every day as they are faced with making decisions regarding how to best meet the needs of their students. In this webinar, staff from NCII, Collaboration for Effective Educator Development Accountability and Reform (CEEDAR) Center, and the National Center on Systemic Improvement (NCSI) share content focused on the continuum of evidence that supports instruction within multi-tiered systems of support (MTSS).


This series of documents developed by the National Center on Intensive Intervention are intended to illustrate how college and career ready standards can be addressed across levels of a multi-tiered system of support (MTSS) or RTI framework in reading and mathematics. They provide examples of how to apply standards relevant instruction across core instruction, secondary intervention, intensive intervention and for to support students with significant cognitive challenges. 


The National Center on Intensive Intervention (NCII) developed Module 1: Introduction to Intensive Intervention to increase users’ knowledge of intensive intervention and data-based individualization (DBI), NCII’s approach to intensive intervention.