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Development and standardization of SCAN-C Test for Auditory Processing Disorders in Children.

R W Keith1

  • 1Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati Medical Center, Ohio, USA.

Journal of the American Academy of Audiology
|September 30, 2000
PubMed
Summary

The revised SCAN-C test for Auditory Processing Disorders in Children offers improved instructions and new subtests. Standardization on 650 children confirmed age-related performance gains and enhanced reliability.

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Area of Science:

  • Audiology
  • Child Psychology
  • Neurodevelopmental Disorders

Background:

  • Auditory Processing Disorders (APD) significantly impact children's learning and communication.
  • Standardized, reliable assessment tools are crucial for diagnosing APD in pediatric populations.
  • Previous versions of auditory processing tests required updates for improved usability and diagnostic accuracy.

Purpose of the Study:

  • To report the development and standardization of the revised SCAN-C: Test for Auditory Processing Disorders in Children.
  • To introduce updated test instructions, stimuli, and subtests for enhanced diagnostic capabilities.
  • To establish normative data and evaluate the psychometric properties of the revised SCAN-C.

Main Methods:

  • Development of revised test instructions and aural stimuli (compact disc).

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  • Revision of the Competing Words subtest and addition of a Competing Sentences subtest.
  • Standardization on 650 children aged 5 years, 0 months, to 11 years, 11 months, including reliability and validity testing.

    • Main Results:

    • Normative data demonstrated systematic performance improvement with increasing age.
    • A new composite standard score calculation provides equal weighting to all subtests.
    • Subtest test-retest reliability improved significantly (correlations .65–.82 for 5–7 year olds).
    • Concurrent validity confirmed SCAN-C results are as reliable as the original SCAN.

    Conclusions:

    • The revised SCAN-C is a standardized and psychometrically sound tool for assessing auditory processing disorders in children.
    • Updated features enhance ease of use for young children and improve diagnostic precision.
    • The SCAN-C provides reliable and valid data for clinical and research applications in pediatric audiology.