Elizabeth J. Preas, PhD, BCBA-D, LMHP

Elizabeth J. Preas, PhD, BCBA-D, LMHPElizabeth J. Preas, PhD, BCBA-D, LMHP

Adjunct Assistant Professor, MMI - iCASD

integrated Center for Autism Spectrum Disorders (iCASD)
Munroe-Meyer Institute, UNMC
985450 Nebraska Medical Center
Omaha, NE 68198-5450


Professional Summary

Elizabeth J. Preas, PhD, BCBA-D, LMHP is an Adjunct Assistant Professor at the University of Nebraska Medical Center (UNMC) in the integrated Center for Autism Spectrum Disorders (iCASD). During her time at MMI, Dr. Preas was the Clinical Director of the Autism Care for Toddlers in Omaha North (ACTION) Clinic that provides early intensive behavioral intervention services to young children diagnosed with an autism spectrum disorder.

Dr. Preas received a Bachelor of Arts in Psychology and Sociology from Austin College under the research mentorship of Dr. Lisa Brown. She received her Masters of Science degree in Clinical and Counseling Psychology from the University of Texas at Tyler, and she received a Ph.D. in Applied Behavior Analysis from UNMC under the supervision of Drs. Therese Mathews and Regina Carroll. Prior to moving to Omaha, Dr. Preas was the Regional ABA Clinical Director for Epic Developmental Services. While working at Epic, she established an early intensive behavioral intervention clinic-based program for children with autism in the North Texas Region and provided home-based services. Previously, Dr. Preas established two clinic-based programs for children with autism and related neurodevelopmental disorders in East Texas with non-profit organizations and served as the clinical director.

Specialty Certifications

  • Board Certified Behavior Analyst
  • Licensed Mental Health Practitioner – Nebraska
  • Licensed Behavior Analyst – Texas


  • PhD, University of Nebraska Medical Center, 2019
  • MS, University of Texas at Tyler, 2012
  • BA, Austin College, 2009

Courses Taught

  • Single Subject Research Design
  • Applied Behavior Analysis
  • Women and Science

Research Interests and Projects

  • Caregiver training
  • Supervisor and staff training
  • Treatment of severe/challenging behavior
  • Feeding and related disorders
  • Treatment integrity and treatment adherence
  • Evaluation of evidence-based teaching procedures
  • Alternative and Augmentative Communication
  • Activities of daily living skills teaching procedures

Professional Affiliations

  • Association for Behavior Analysis International
  • Texas Association for Behavior Analysis
  • Heartland Association for Behavior Analysis
  • Mid-American Association for Behavior Analysis