Andrea Witwer, Ph.D.

Program Director

Developmental Clinics, IDD Psychology, LEND

(614) 685-8721





Andrea Witwer graduated from The Ohio State University with a Ph.D. in Psychology. She then completed a Postdoctoral Fellowship at Nationwide Children’s Hospital, with an emphasis on Developmental Disabilities.


  • emotional assessment and applied behavior analysis
  • family stress
  • early screening and surveillance of autism spectrum disorder
  • early intervention & developing IFSP goals measure


Dr. Witwer supervises psychology graduate students and postdoctoral fellows and provides training in the Nisonger Clinics. She is also a Leadership Education in Neurodevelopmental and Related Disabilities Program (LEND) faculty member.

Dr. Witwer currently participates in an interdisciplinary team which assess children suspected of having and an autism spectrum disorder (ASD) or other developmental disability. She also conducts psychological evaluations and behavioral consultations with children with ASDs and other intellectual and developmental disabilities. She is the program director of the School-Aged Autism and Developmental Clinic.

Recent Publications

Witwer, A.N., Lecavalier, L. Norris, M. (2012). Reliability and Validity of the Children’s Interview for Psychiatric Syndromes-Parent Version in Autism Spectrum Disorders. Journal of Autism Spectrum Disorders, DOI 10.1007/s10803-012-1442-y.

Witwer, A.N. & Lecavalier, L. (2010). Validity of comorbid psychiatric disorders in youngsters with autism spectrum disorders. Journal of Developmental and Physical Disabilities. 22, 367-380.

Jahromi, L.B., Kasari, C.L., McCracken, J.T., Lee, L.S-Y., Aman, M.G., McDougle, C.J., Scahill, L., Tierney, E., Arnold, L.E., Vitiello, B., Ritz, L., Witwer, A., Kustan, E., Ghuman, J., & Posey, D. (2009). Positive effects of methylphenidate on social communication and self-regulation in children with pervasive developmental disorders and hyperactivity. Journal of Autism and Developmental Disorders, 39, 395-404.

Arnold, L.E., Farmer, C., Kraemer, H.C., Davies, M., Witwer, A.N., Chuang, S. DiSilvestro, R., McDougle, C.J., McCracken, J., Vitiello, B., Aman, M.G., Scahill, L., Posey, D.J., & Swiezy, N. (2010). Moderators, mediators, and other predictors of risperidone response in children with autistic disorder and irritability. Journal of Child and Adolescent Psychopharmacology, 20, 83-93.

Witwer, A.N. & Lecavalier, L. (2008). Psychopathology in children with intellectual disability: Risk markers and correlates. Journal of Mental Health Research in Intellectual Disabilities, 1, 75 – 96. Witwer, A.N. & Lecavalier, L. (2008). Examining the validity of autism spectrum disorder subtypes. Journal of Autism and Developmental Disorders, 38, 1611-1624.

Witwer, A.N. & Lecavalier, L. (2007). Autism screening tools: An evaluation of the Social Communication Questionnaire and the Developmental Behaviour Checklist-Autism Screening Algorithm. Journal of Intellectual & Developmental Disability, 32, 197-188.

Witwer, A.N. & Lecavalier, L. (2007). A response to John Taffe’s commentary on an evaluation of the SCQ and DBC-ASA. Journal of Intellectual & Developmental Disability, 32, 189.