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Related Experiment Videos

Three experiments on the California Consonant Test.

D M Schwartz, R K Surr

    The Journal of Speech and Hearing Disorders
    |February 1, 1979
    PubMed
    Summary
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    The California Consonant Test (CCT) shows a linear performance-intensity function, unlike traditional tests. While reliable overall, its split-half reliability is questionable for individual listener assessments.

    Area of Science:

    • Audiology
    • Speech Perception
    • Hearing Science

    Background:

    • Traditional word recognition tests often yield sigmoidal performance-intensity functions.
    • High-frequency sensorineural hearing loss presents unique challenges in audiological assessment.

    Purpose of the Study:

    • To evaluate the performance-intensity functions of the California Consonant Test (CCT).
    • To compare CCT results with conventional word recognition tests (NU-6).
    • To assess the internal consistency and split-half reliability of the CCT.

    Main Methods:

    • Obtained performance-intensity functions for normal hearers and those with high-frequency sensorineural hearing loss using the CCT.
    • Compared CCT results to NU-6 word recognition scores in 60 subjects with high-frequency hearing loss.

    Related Experiment Videos

  • Examined internal consistency and split-half reliability of the CCT.

    • Main Results:

    • The CCT demonstrated a linear performance-intensity function, approaching asymptote at 50 dB SL.
    • CCT scores approximated a normal distribution, contrasting with high scores on NU-6 materials.
    • Significant correlation coefficients were found for split-half reliability, but high variability existed between half-list scores.

    Conclusions:

    • The CCT exhibits a linear function, differing from conventional tests.
    • The CCT provides a different score distribution compared to NU-6 lists.
    • The CCT's split-half reliability is not supported for individual listener assessment due to score variability.