Robert C. Colligan, Ph.D., L.P.


  1. Rochester, Minnesota


  1. Attention-deficit and disruptive behavior disorders
  2. Learning disorders
  3. Mental retardation
  4. Personality disorders
  5. Pervasive developmental disorders
  • Continuation of our normative work with the Minnesota multiphasic personality inventory (MMPI-2), relationship between personality factors that can be addressed with the MMPI (e.g., optimism-pessimism) and long-term Quality of Life (QOL) and longevity among medical patients
  • Outcome studies of young adults with or without a history of childhood Learning Disorder (LD) Attention Deficit Hyperactivity Disorder (ADHD)
  • Epidemiology research in the areas of Mental Retardation (MR), PDD, Reading LD, Math LD, and ADHD


Research activities

See a description of research activities.