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Related Experiment Videos

Differentiating normal variability from inconsistency in children's speech: normative data.

Alison Holm1, Sharon Crosbie, Barbara Dodd

  • 1Perinatal Research Centre, University of Queensland, Brisbane, Qld, Australia. a.holm@uq.edu.au

International Journal of Language & Communication Disorders
|July 7, 2007
PubMed
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Speech inconsistency is not typical in children

Area of Science:

  • Child language acquisition
  • Speech-language pathology
  • Developmental phonology

Background:

  • Distinguishing typical speech variability from clinical inconsistency is crucial for accurate diagnosis.
  • Inconsistent speech production is a key indicator of speech sound disorder.
  • Defining and quantifying inconsistency is essential for evidence-based clinical decisions.

Purpose of the Study:

  • To differentiate between speech variability and inconsistency in young children.
  • To define and quantify speech inconsistency.
  • To describe and measure word production consistency in typically developing children aged 3 to 6 years.

Main Methods:

  • A large cross-sectional study involving 409 children.
  • Analysis of word production consistency within the same linguistic context.

Related Experiment Videos

  • Quantification of segmental and structural errors in repeated word productions.

    • Main Results:

    • Typically developing children exhibit highly consistent speech production.
    • The youngest children (3-6 years) showed the highest variability, but it remained below 13%.
    • Variability below 10% was attributed to normal maturational influences.

    Conclusions:

    • Inconsistent speech production is not a normal aspect of child speech development.
    • Findings support the differential diagnosis of speech sound disorders.
    • Clear definitions and measures of inconsistency aid clinical decision-making.