The Influence of Multiple Presentations on Judgments of Children's Phonetic Accuracy Two experiments examined whether listening to multiple presentations of recorded speech stimuli influences the reliability and accuracy of judgments of children's speech production accuracy. In Experiment 1, 10 listeners phonetically transcribed words produced by children with phonological impairments after a single presentation and after the word was played 7 times. ... Research Article
Research Article  |   November 01, 2004
The Influence of Multiple Presentations on Judgments of Children's Phonetic Accuracy
 
Author Affiliations & Notes
  • Benjamin Munson
    University of Minnesota, Minneapolis
  • Kayla N. Brinkman
    University of Minnesota, Minneapolis
  • Contact author: Benjamin Munson, Department of Speech-Language-Hearing Sciences, University of Minnesota, 115 Shevlin Hall, 164 Pillsbury Drive SE, Minneapolis, MN 55455. E-mail: munso005@umn.edu
  • * Currently affiliated with the University of Oregon, Eugene.
    Currently affiliated with the University of Oregon, Eugene.×
Article Information
Speech, Voice & Prosodic Disorders / Attention, Memory & Executive Functions / Speech, Voice & Prosody / Research Articles
Research Article   |   November 01, 2004
The Influence of Multiple Presentations on Judgments of Children's Phonetic Accuracy
American Journal of Speech-Language Pathology, November 2004, Vol. 13, 341-354. doi:10.1044/1058-0360(2004/034)
History: Received May 4, 2004 , Accepted August 7, 2004
 
American Journal of Speech-Language Pathology, November 2004, Vol. 13, 341-354. doi:10.1044/1058-0360(2004/034)
History: Received May 4, 2004; Accepted August 7, 2004
Web of Science® Times Cited: 3

Two experiments examined whether listening to multiple presentations of recorded speech stimuli influences the reliability and accuracy of judgments of children's speech production accuracy. In Experiment 1, 10 listeners phonetically transcribed words produced by children with phonological impairments after a single presentation and after the word was played 7 times. Inter- and intratranscriber reliability in the single- and multiple-presentation conditions did not differ significantly. In Experiment 2, 18 listeners provided binary correct/incorrect judgments of /s/ accuracy in single- and multiple-presentation conditions. There was no systematic effect of presentation condition on either accuracy or intrarater reliability. However, greater interrater reliability was noted in the multiple-presentation condition, particularly for tokens of /s/ that were incorrect or acoustically intermediate between an incorrect and a correct /s/. Taken together, the results suggest that multiple presentations have no measurable effect on the accuracy and intrarater reliability of judgments of children's phonetic accuracy, but that they do have a small effect on interrater reliability. Clinical implications are discussed.

Acknowledgments
This research was supported by a Faculty Summer Research Fellowship from the University of Minnesota Graduate School to the first author to conduct Experiment 1, and by a University of Minnesota Undergraduate Research Opportunity Program grant to the second author to conduct Experiment 2. We thank Keith Johnson and Liz Strand for sharing the Klatt Synthesizer parameter files that were used to create the stimuli for Experiment 2. The results of Experiment 1 were presented at the 2003 Symposium for Research on Child Language Disorders in Madison, WI. We thank audiences at that conference for useful input. We are especially grateful to Rebecca Herman for providing valuable insight into the design of Experiment 2, particularly regarding the number of repetitions in our multiple-presentation condition. We also thank the children who produced the stimuli, and the adults who participated in the experiments.
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