James Madison University

Marsha Longerbeam, Ph. D., M.S., CCC-SLP

Assistant Professor

PHOTO: Marsha Longerbeam
  • Office: HBS 1078
  • Phone: 540-568-3389
  • Email: longerms@jmu.edu
  • Mailing Address:
    MSC 4304
    235 Martin Luther King Jr Way
    Harrisonburg, VA 22807


  • Ph.D.  James Madison University
  • M.S. James Madison University

Research and Teaching Areas

  • Autism Spectrum Disorders
  • Sensory Integration Disorders
  • Behavior Intervention and Management

Current and Ongoing Research Projects

  • Impact of Sensory Integration intervention on vocal/verbal output of children with autism
  • Impact of Sensory Integration intervention on communicative attempts of children with autism

National and International Conference Presentations (last five years)

  • Powell, M. & Reed, V. A. (2010 June).  Facilitating Autistic Children’s Communication with Brief Exposures to Sensory Stimulation (SS).  Presentation at the 13th Symposium of the International Clinical Phonetics and Linguistics Association, Oslo, Norway.
  • Powell, M., Reed, V. A., Sigafoos, J., Scott, A., & Ouellette, K. (2012 June). Documenting Treatment Fidelity in Research Examining the Contribution of Sensory Stimulation to the     Effectiveness of Speech-Language Intervention for Autistic Children.  Presentation at the 14th Symposium of the International Clinical Phonetics and Linguistics Association, Cork, Ireland.
  • Longerbeam, M., Reed, V.A., Scott, A. (June 2014). Effect of Raters’ Clinical Experience in Measuring Treatment Fidelity in Research Investigating Efficacy of Autism Intervention: A Pilot.  Presentation at the Symposium for Research in Child Language Disorders, Madison, Wisconsin.
  • Simons, E., White, H., Longerbeam, M. & Stokes, T.F. (2014, May). Merge of Behavior Analysis Procedures into a Speech-Language Pathology Autism Clinic Poster presented at the 40th annual convention of the Association for Behavior Analysis International, Chicago, IL.
  • Developing merged multidisciplinary treatment protocols at an inter-professional autism clinic( 2014 May). Simons, E., Cannady, M., Faller, A., Tiry, A., White, H., Vetter, J., Richardson, E., Longerbeam, M., Stokes, T. Poster: 2014 ABAI Annual Convention:    Chicago, IL; May 23-27, 2014, at McCormick Place in Chicago, Illinois.
  • Dudding, Odonoghue, Longerbeam (April 2015). A Virtual Interprofessional Clinic. Council of Academic Programs in Communication Sciences and Disorders Conference, Newport Beach, Long Beach, CA.