Dr. Nicholas A. Gage is an Assistant Professor of Special Education at the University of Florida.  He received his Ph.D. in Special Education from the University of Missouri where he studied special education policy, statistical analysis, single-subject research, Positive Behavior Support (PBS), and Applied Behavioral Analysis (ABA).  In addition to his doctoral studies, Dr. Gage was an Institute of Education Sciences (IES) Post-doctoral Fellow in the Center for Behavioral Education and Research (CBER) at the University of Connecticut working on statistical and methodological advances in special education research field.  Specific research interests include identification of policies and practices at the national, state, local and classroom level to support the academic, social, and behavioral needs of students with disabilities through rigorous and diverse research practices and his expertise is in supporting schools, districts, and states in leveraging their data resources to best develop effective and efficient systems of support for students’ academic and behavioral needs. Dr. Gage’s expertise includes statistical modeling, research design and methodology, direct observation, single-subject research, and Functional Behavioral Assessment. He is a certified What Works Clearinghouse reviewer for both group and experimental designs and served as lead evaluator/statistician on grants totaling over $10 million.

Dr. MacSuga-Gage is a Clinical Assistant Professor of Special Education at the University of Florida. She has a Ph.D. in Special Education from the University of Connecticut where she studied Positive Behavior Support (PBS), School-Wide Positive Behavior Interventions and Supports (SWPBIS), and Applied Behavioral Analysis (ABA). In addition to her doctoral studies at the University of Connecticut, Dr. MacSuga-Gage also earned two additional graduate certifications in Positive Behavior Supports (PBS) and program evaluation. Specific research interests include identifying and supporting teachers in the implementation of Class-Wide Positive Behavior Support (CWPBS) practices through the application of Multi-Tiered Systems of Support (MTSS) to professional development and the implementation, sustainability, and scale-up of SWPBIS efforts. Dr. MacSuga-Gage has experience working with local schools and statewide initiatives (in Connecticut, Florida, Massachusetts, and Vermont) to provide training and technical assistance in PBIS, SWPBIS, and behavior management. She continues to retain valid Connecticut State teaching certification in K-12 Special Education and worked as a special education teacher in several urban settings including New York City and Hartford Connecticut. Dr. MacSuga-Gage is the author of several journal articles and is an active presenter at both local and national/international conferences focusing on supporting the behavioral needs of adults and children.

Trisha R. (Carver) Guffey, Ed.D. is a Senior Research Associate in the Department of Special Education at the University of Missouri-Columbia (MU).  A native from Blue Springs, Missouri, Dr. Guffey attended the University of Central Missouri, formally known as Central Missouri State University, where she received her Bachelor’s Degree in Business Education with a Minor in Speech and Theatre Education as well as her Masters Degree in Curriculum and Instruction.  She completed her Ed.S. and Ed.D. at Saint Louis University in the Department of Educational Leadership majoring in Educational Leadership with a concentration in Educational Administration at both the building and district level.  Prior to her work at the university, Dr. Guffey was as a teacher at the middle and high school level and then served as an administrator for nine years.  Dr. Guffey has published articles regarding the implementation of Positive Behavior Intervention Supports (PBIS), led a team in creating an intervention which embedded social skills and service learning, and works internationally with district-level leaders on the alignment, implementation, and sustainability of PBIS and Multi-Tiered Systems of Support.  Dr. Guffey, her husband, and two children reside in Kansas City, Missouri.


Dr. Brit’ny Stein is a Licensed Psychologist and Nationally Certified School Psychologist at Osage County Interlocal Cooperative. Her work includes collaborating with local universities to train and supervise MTSS coaching and professional development, as well as the supervision of school psychological services. She also serves as the research and planning coordinator for a Federal EIR grant focused on technology and school climate in rural schools.