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A computerized adaptive testing system for speech discrimination measurement: the Speech Sound Pattern Discrimination

J Bochner1, W Garrison, L Palmer

  • 1National Technical Institute for the Deaf, Rochester Institute of Technology, New York 14623, USA. JHBNCP@ritvax.isc.rit.edu

The Journal of the Acoustical Society of America
|April 1, 1997
PubMed
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This study introduces an adaptive computer test for speech discrimination, the Speech Sound Pattern Discrimination Test. It efficiently measures speech processing ability in deaf adults without high English proficiency.

Area of Science:

  • Audiology
  • Speech-Language Pathology
  • Psychometrics

Background:

  • Accurate speech discrimination assessment is crucial for understanding speech processing.
  • Existing methods may require high language proficiency or lack efficiency.
  • Adaptive testing offers a personalized approach to ability measurement.

Purpose of the Study:

  • To describe and evaluate a computerized, adaptive test for speech discrimination.
  • To assess the Speech Sound Pattern Discrimination Test's validity, reliability, and efficiency.
  • To measure speech processing ability in young deaf adults.

Main Methods:

  • Developed a computerized adaptive test using a pool of 130 items.
  • Employed a modified discrimination task driven by a mathematical measurement model.

Related Experiment Videos

  • Administered the test to young deaf adults, evaluating sensory, perceptual, acoustic, and phonetic factors.

    • Main Results:

    • The adaptive system effectively estimated speech processing ability.
    • Individualized item selection enhanced the testing experience.
    • Data supported the test's validity, reliability, and efficiency.

    Conclusions:

    • The Speech Sound Pattern Discrimination Test is a valid, reliable, and efficient measure.
    • The adaptive system accommodates varying difficulty levels and language proficiencies.
    • This tool aids in assessing speech processing in diverse populations, including deaf adults.