Mary Beth DeWitt, PhD

Dr. Mary Beth DeWitt is a pediatric psychologist and the division chief of child psychology at Dayton Children's. She supports children and families as they navigate concerns related to emotional and mental health. Dr. DeWitt cares for children with autism spectrum disorders, developmental delays, chronic health conditions, and other challenges that can affect development and progress. She is especially passionate about helping families get the right support as early as possible. Early intervention, using evidence-based care, can help prevent longer-term challenges.

Dr. DeWitt is inspired by this work from seeing the resilience of the children she cares for and the dedication of their parents. It is her privilege to help kids along their journey of growth and development, and to be part of the support they need in times they need it most. 

publications and presentations

• DeWitt, M.B. (2023). Reclaiming Missed Opportunities. Current Problems in Pediatric and Adolescent Health Care, 53(11).https://doi.org/10/1016/j.cppeds.2023.101490
• Duby, J.F, Blankenship, & DeWitt, M.B. (2023), The Interview in Developmental Behavioral Pediatrics. In Feldman, H.M, Elias, E,R., Blum, N.J, Jimenez, M.E and Stancin T% (Eds.) Developmental Pediatrics, Fifth Edition Philadelphia: Elsevier.
• Tunick, R., McClellan, B., DeWitt, M., & Hanlon, K. (2016). Development of Pediatric Primary Care Training: Promises and Pitfalls. Symposium presented at the American Psychological Association Annual Convention, Denver, Colorado, August, 2016.
• Hanlon, K., Salman, N., Middleton, L., DeWitt, M. (2016). Training/focus group on the role of Pediatric Psychology Consultation-Liaison Service at a Midwestern Children’s Medical Center. Poster presented at the Society of Pediatric Psychology Regional Conference, April, 2016.
• Farmer, C., Kaat, A., Mazurek, M., Lainhart, J., DeWitt, M.B., Cook, Jr., E., Butter, E., & Aman, M.G. (2016). Confirmation of the Factor Structure and Measurement Invariance of the Children’s Scale of Hostility and Aggression: Reactive/Proactive (C-SHARP) in Clinic-Referred Children with and without ASD. Journal of Child and Adolescent Psychopharmacology, 26(1), 10-18.
• Hale, J.B., Howe, S.K., DeWitt, M.B., & Coury, D.L. (2001). Discriminant validity of the Conners Scales for ADHD subtypes. Current Psychology, 20(3), 231-249.
• DeWitt, M.B., Ott, J., Fillingame, S., Crist, M., & Stucke, J.L. (1999). Psychosocial issues in chronic illness. Pediatric Forum, 10 (1), 21-23.
• DeWitt, M.B., Schreck, K., & Mulick, J.A. (1998). Use of the Bayley Scales in individuals with profound mental retardation. Manuscript in preparation. Journal of Developmental and Physical Disabilities,10(3), 307-313.
• Hale, J.B., Hoeppner, J.B., DeWitt, M.B., Coury, D.L., Ritacco, D., and Trommer, B. (1998). Evaluating medication response in ADHD: Cognitive, behavioral, and single subject methodology. Journal of Learning Disabilities, 31(6), 595-607.
• DeWitt, M.B., Aman, M.G., & Rojahn, J. (1997). Effects of reinforcement contingencies on the performance of children with mental retardation and attention problems. Journal of Developmental and Physical Disabilities, 9 (2), 101-115.