Nan Bernstein Ratner


Nan Bernstein Ratner is Professor, Department of Hearing and Speech Sciences, University of Maryland, College Park. She is a Fellow and Honors recipient of the American Speech, Language and Hearing Association (ASHA).

 Her primary areas of research are fluency development and disorder (stuttering), psycholinguistics and the role of adult input and interaction in child language development. The author of numerous research articles, chapters and edited texts, she is the co-author of A Handbook on Stuttering (6th ed) with the late Oliver Bloodstein, as well as The Development of Language (7th ed) and Psycholinguistics (2nd ed.), both with Jean Berko Gleason. She is a Board-recognized Specialist in Child Language Disorders. In 2006, Professor Bernstein Ratner received the Distinguished Researcher award from the International Fluency Association. In 2014, she was made a Fellow of the American Association for the Advancement of Science (AAAS).

Dr. Ratner also publishes in the areas of Evidence-Based Practice in Communication Disorders. Many of her research articles can be found at Google Scholar:

Dr. Bernstein Ratner is a member of the following campus units:

Neuroscience and Cognitive Neuroscience (NACS): 

Language Sciences Center (LSC): 

University of Maryland Autism Research Consortium:

University of Maryland Developmental Sciences Field Committee


Areas of Interest:
  • Speech and language acquisition in typical children and children with communication disorders, such as children with autism, seizure disorder, and late talkers
  • fluency and fluency disorders, with an emphasis on stuttering
  • the role of parent-child interaction in typical and atypical communication development
  • BA Child Study, Linguistics Tufts University 1974
  • MA Speech-Language Pathology Temple University 1976
  • Ph.D Applied Psycholinguistics Boston University 1982
Course Name Course Title Semester Syllabus File
HESP616 Language Disorders in Children Fall 2014
HESP616 Language Disorders in Children Fall 2014 Syllabus
HESP402 Language and Phonological Disorders in Children Spring 2014 Syllabus

My research interests cross a number of areas, including typical speech and language development in infants and children; childhood communication disorders; the role of parents in language development; typical fluency and fluency disorders, such as stuttering; and the roles of evidence-based practice and information literacy in the conduct of speech-language pathology.

Campus Neuroscience and Cognitive Science Program (NACS)
Campus Language Sciences at Maryland
Campus Developmental Science Field Committee
Campus Founding member, University of Maryland Autism Research Consortium (UMARC)
Former Students
  • Peitzu Tsai
    San Jose State University
  • Stacy (Silverman) Wagovich
    University of Missouri
  • Amy Strekas
    American Institute for Stuttering
  • Catherine Torrington Eaton
    Rockhurst University
0141GG Lefrak Hall
Department of Hearing and Speech Sciences
Phone: (301) 405-4217
Office Hours:
By appointment