This episode kicks off PBISApps’ 2025–26 school year theme: data in PBIS. Our guest today is a true PBIS pioneer: Dr. Rob Horner. Dr. Horner is an emeritus professor at the University of Oregon and a key figure in developing PBIS. He brings with him a 40-year history of research, grant management, and systems change efforts related to school reform and PBIS. He has published over 390 professional papers and directed over $200 million dollars in federal grants. Among many past national awards, in 2020 he won the Association of Positive Behavior Support Leadership Award. During our conversation, we talk about the early days of PBIS, when Rob and colleagues worked directly with schools to address challenging behaviors. They discovered that individual behavior plans could help—but lasting change required schoolwide systems and a preventative culture. PBIS emerged as a framework with core features that could adapt to local cultures, from rural schools to Native communities. Data always played a key role in this work. Listen in and learn how collecting and analyzing data can help your team see what’s really happening, ask better questions, and identify the smallest changes that make the biggest impact.