Influence of passage familiarity on intelligibility estimates of dysarthric speech

David R. Beukelman, Kathryn M. Yorkston

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

Speech pathologists often estimate intelligibility as dysarthric speakers read standard passages. The first phase of this study compared estimates of intelligibility made by speech pathologists with transcription scores made by judges unfamiliar with the speech passages. Results indicated that speech pathologists consistently overestimated intelligibility. It was hypothesized that judge familiarity with the speech sample contributed to these inflated scores. Therefore, during the second phase of the study the influence of speech sample familiarity on estimates of intelligibility was investigated. Groups of listeners judged mild, moderate, and severely dysarthric speakers under three conditions of familiarity-Unfamiliar (passage unknown), Partially Familiar (passage read twice by a normal speaker), and Most Familiar (script of the passage available). For mild and severely dysarthric speakers, passage familiarity did not significantly influence judges' estimates. For the moderately dysarthric speakers, estimates of intelligibility increased markedly with increasing passage familiarity. Clinical implications of these results are discussed.

Original languageEnglish (US)
Pages (from-to)33-41
Number of pages9
JournalJournal of Communication Disorders
Volume13
Issue number1
DOIs
StatePublished - Jan 1980

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Linguistics and Language
  • Cognitive Neuroscience
  • LPN and LVN
  • Speech and Hearing

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