Tiered Interventions Using Evidence-Based Research, or TIER, is a project funded by the Texas Education Agency. Our goal is to provide educators, caregivers, and other educational stakeholders with the knowledge and materials to ensure appropriate implementation of multi-tiered system of supports (MTSS) in every school across Texas.

Funded by the U.S. Department of Education's Office of Special Education Programs (OSEP) and the Office of Elementary and Secondary Education (OESE), the Technical Assistance Center on PBIS supports schools, districts, and states to build systems capacity for implementing a multi-tiered approach to social, emotional and behavior support. The broad purpose of PBIS is to improve the effectiveness, efficiency and equity of schools and other agencies. PBIS improves social, emotional and academic outcomes for all students, including students with disabilities and students from underrepresented groups.

The Association for Positive Behavior Support is a multidisciplinary organization made up of professionals (teachers, researchers, university professors, and administrators), family members, and consumers who are committed to the application of positive behavior support within the context of the school, family, and community including across systems (e.g., entire schools, organizations), for small groups, and for individuals with complex needs for support.