Stuttering and Speech Naturalness Audio and Audiovisual Judgments Research Article
Research Article  |   June 01, 1992
Stuttering and Speech Naturalness
 
Author Affiliations & Notes
  • Richard R. Martin
    University of Minnesota, Minneapolis
  • Samuel K. Haroldson
    University of Minnesota, Minneapolis
Article Information
Speech / Research Articles
Research Article   |   June 01, 1992
Stuttering and Speech Naturalness
Journal of Speech, Language, and Hearing Research, June 1992, Vol. 35, 521-528. doi:10.1044/jshr.3503.521
History: Received April 16, 1991 , Accepted May 28, 1991
 
Journal of Speech, Language, and Hearing Research, June 1992, Vol. 35, 521-528. doi:10.1044/jshr.3503.521
History: Received April 16, 1991; Accepted May 28, 1991

Unsophisticated raters, using 9-point interval scales, judged speech naturalness and stuttering severity of recorded stutterer and nonstutterer speech samples. Raters judged separately the audio-only and audiovisual presentations of each sample. For speech naturalness judgments of stutterer samples, raters invariably judged the audiovisual presentation more unnatural than the audio presentation of the same sample; but for the nonstutterer samples, there was no difference between audio and audiovisual naturalness ratings. Stuttering severity ratings did not differ significantly between audio and audiovisual presentations of the same samples. Rater reliability, interrater agreement, and intrarater agreement for speech naturalness judgments were assessed.

Acknowledgments
This research was supported in part by the Bryng Bryngelson Communication Disorders Research Fund, University of Minnesota. The authors appreciate the assistance of Marilee Williams.
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