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Related Experiment Videos

Comfortable loudness judgments for discrete frequency signals

K W Berger, L D Harrison, N Monack

    The Journal of Auditory Research
    |April 1, 1980
    PubMed
    Summary

    Determining the Most Comfortable Loudness Level (MCL) is unreliable for hearing tests. Both between- and within-subject consistency for MCL was poor, suggesting the measurement itself is highly variable.

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    Area of Science:

    • Audiology
    • Hearing Science
    • Psychoacoustics

    Background:

    • The Most Comfortable Loudness Level (MCL) is a key audiological measure.
    • Understanding MCL reliability is crucial for accurate hearing assessments.

    Purpose of the Study:

    • To evaluate the test-retest reliability of the Most Comfortable Loudness Level (MCL).
    • To investigate factors influencing MCL measurement variability in normal-hearing adults.

    Main Methods:

    • Three experiments were conducted with young, normal-hearing adults naive to audiometric testing.
    • Stimuli included pure tones, narrow-band noise, and damped wave trains.
    • Presentation methods involved ascending, descending, and Bekesy procedures.

    Main Results:

    • Intersubject reliability (between different participants) was found to be very poor.
    • Intrasubject reliability (within the same participant) was only fair.
    • The inherent nature of the MCL task appears to contribute significantly to variability.

    Conclusions:

    • The test-retest reliability of MCL is questionable, even in normal-hearing individuals.
    • Variability may stem from the task's inherent nature and potential ambiguities in subject instructions.
    • Further research is needed to refine MCL measurement protocols for improved consistency.

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