Personal information

My research and teaching are focused on the development, assessment and treatment of social functioning of individuals with and without psychopathology. In particular, I am involved in a wide variety of projects that highlight the assessment of social emotional problems in autism and the effects of treatment for some of these problems. I have developed new methods and new approaches to assess social functioning of individuals with autism, and used these to assess treatment effects. Together with the Netherlands Autism Society, I founded the Netherlands Autism Register (NAR),, a large longitudinal cohort of individuals with autism. Future use of innovative approaches, including the experimental investigating assessment bias in clinicians, network analysis of risk factors in autism, close collaboration with and individual dissemination of outcomes to affected individuals (NAR), the focus on individual differences in treatment success underline the foundation of my research line.

Research Gate

Representative publications 2010-2015

Begeer, S., Howlin, P., Hoddenbach, E., Clauser. C., Gevers, C., Clifford, P., Boer, F. & Koot, H. M. (in press). Moderators of a Theory of Mind Intervention for Children with Autism Spectrum Disorder: A Randomized Controlled Trial. Autism Research. 

Backer van Ommeren, T., Koot, H. M., Scheeren, A., & Begeer, S. (in press). Reliability and Validity of the Interactive Drawing Test: A Measure of Reciprocity for Children and Adolescents with Autism Spectrum Disorder. Journal of Autism and Developmental Disorders.

Fink, E., Begeer, S. Hunt, C., and De Rosnay, M. (2014). False-belief understanding and social preference over the first two years of school: A longitudinal study. Child Development, 85, 2389–2403.

Begeer, S., De Rosnay, M., Lunenburg, P., Stegge, H., & Meerum Terwogt, M. (2014). Understanding of emotions based on counterfactual reasoning in children with Autism Spectrum Disorders. Autism, 18, 301-310.

Begeer, S., Mandell, D., Wijnker-Holmes, B., Venderbosch, S., Rem, D., Stekelenburg F. & Koot, H. M. (2013). Sex differences in the timing of identification among children with Autism, Asperger’s syndrome or PDDNOS. Journal of Autism and Developmental Disorders, 43:1151-6.

Scheeren, A. M., de Rosnay, M., Koot. H. M., & Begeer, S. (2013). Rethinking Theory of Mind in children and adolescents with autism. Journal of Child Psychology and Psychiatry, 54, 628-35.

Begeer, S., Bernstein, D. M., van Wijhe, J., Scheeren, A. M., & Koot, H. M. (2012). A continuous false belief task reveals egocentric biases in children and adolescents with autism. Autism, 16, 357-366.