Family training is a key component of her therapy. Dr. Kessler specializes in the diagnosis and treatment of autism spectrum disorders. She is a Codirector of Psychology Services at the New York University Child Study Center’s Institute for Pediatric Neuroscience and is in private practice in Park Slope, Brooklyn, where she provides assessment, treatment, and consultation to families and schools. In addition to standardized testing of IQ, achievement, memory, and behavior, her assessment skills include the use of the Autism Diagnostic Observation Schedule (ADOS), an instrument on which Dr. Kessler trains other professionals, as well as the Autism Diagnostic Interview- Revised (ADI-R).