TasseMarkProfessor, Department of Psychology and Psychiatry

Nisonger Center

Nisonger Center profile

Current Research: Current publications have focused on the social outcomes for adults with autism spectrum disorder (ASD) in comparison to adults with developmental disabilities by investigating the relationships between the constructs of social participation and relationships, social determination and personal control.

PubMed articles

Research Areas:

  • More than 25 years of experience in conducting research and providing clinical services in the field of intellectual disability and related neurodevelopmental disabilities.
  • Conducted more than 240 trainings, workshops and presentations related to intellectual disability, autism spectrum disorder and related neurodevelopmental disabilities.
  • Specific research interests focus on assessment and psychometrics (item response theory), adaptive behavior, problem behavior and psychiatric disorders, health issues and intervention strategies in ASD and ID.
  • Research has focused on the co-occurrence of intellectual disability or ASD and psychiatric problems or problem behaviors, understanding and measuring adaptive behavior, test development and the concept of support needs.
  • Recent research has also centered on the study of the health and well-being of persons with ASD, ID and other related developmental disabilities.
  • Publication record includes more than 130 articles in peer-reviewed journals, chapters and books in the area of intellectual disability and related neurodevelopmental disabilities.


PhD: Université du Québec à Montréal


Fellowship: The Ohio State University Nisonger Center, University Center for Excellence in Developmental Disabilities

Subscribe. Get just the right amount of health and wellness in your inbox.