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Articulation testing versus conversational speech sampling.

J A Morrison1, L D Shriberg

  • 1University of Redlands, CA.

Journal of Speech and Hearing Research
|April 1, 1992
PubMed
Summary
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Standard articulation tests and conversational speech samples yield different speech accuracy profiles in children. Conversational speech is more representative of overall speech performance for clinical decisions.

Area of Science:

  • Speech-Language Pathology
  • Linguistics
  • Developmental Psychology

Background:

  • Accurate speech assessment is crucial for identifying and treating speech sound disorders in children.
  • Standard articulation tests and conversational speech samples are common methods for evaluating speech production.
  • Understanding the differences between these sampling methods is essential for reliable clinical decision-making.

Purpose of the Study:

  • To compare the speech accuracy profiles obtained from a standard articulation test versus a conversational speech sample in speech-delayed children.
  • To investigate linguistic levels where differences in accuracy occur between the two sampling modes.
  • To determine the concordance rate of clinical decisions based on each sampling method.

Main Methods:

Related Experiment Videos

  • Detailed speech analyses were conducted on 61 speech-delayed children.
  • Data were collected using both a standard articulation test and a conversational speech sample.
  • Statistical analyses compared accuracy at various linguistic levels (phonemes, processes, error types, etc.).

    • Main Results:

    • Statistically significant differences in articulation accuracy were found across all linguistic levels examined between the two sampling modes.
    • Established sounds were more accurate in conversational speech, while emerging sounds were more accurate on articulation tests.
    • A pass-fail analysis showed similar clinical decisions for only 71% of consonant sounds on average.

    Conclusions:

    • Articulation tests and conversational speech samples yield different speech performance measures.
    • Conversational speech samples provide a more typical and optimal measure for integrated speech, language, and prosodic analyses.
    • Clinical decisions based solely on articulation tests may not fully represent a child's overall speech abilities.