Dr. Stone has worked as a school psychologist in both school-based and clinical settings. She is a Nationally Certified School Psychologist (NCSP) and has worked with children and adolescents with diverse learning, behavioral, emotional, and developmental needs. In addition, she has extensive experience consulting with parents, therapists, and educational staff to enhance the learning and social-emotional outcomes of students from preschool through high school.

As the director for the School Psychology Graduate Program, Dr. O’Donnell brings extensive knowledge and expertise to Marist’s program. Dr. O'Donnell has affiliations with the New York Association of School Psychologists, the National Association of School Psychologists, the American Psychological Association, the trainers of School Psychologists, the trainers of School Psychologists, New York, and the Psi Chi International Honor Society in Psychology.

Dr. Williams is a Licensed Psychologist and Certified School Psychologist. Her years of working with at-risk learners in both urban and rural communities have given her clear insights into the frustrations, challenges, and joys of working as a school psychologist. At the national level, Dr. Williams serves on the Trainers of School Psychologists (TSP) executive board, where she co-chairs the Social Justice task force and serves as membership coordinator.