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The Screening Test for Auditory Disorders (SCAN) is a screening tool used to determine if a child (or adult) should be evaluated for central auditory processing (CAP) disorders. The SCAN-C is a CAP screening instrument for children (Keith, 1986, 2000a, 2000b), while the SCAN-A is used for adolescents and adults (Keith, 1994). The revised SCAN-C was designed for children from 5 to 11 years of age and consists of four subtests: Filtered Words, Auditory Figure Ground (speech-in-noise), Competing Words, and Competing Sentences (Keith, 2000a, 2000b). The Filtered Words subtest consists of 1,000-Hz low-pass filtered monosyllabic words with a filter roll-off of 32 dB/octave. The listener must repeat the word she/he perceives. The Auditory Figure Ground subtest consists of monosyllabic words recorded at +8 signal-to-noise ratio with a multi-talker babble background. The listener must repeat the stimulus words in the presence of the...
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References and Readings
Amos, N., & Humes, L. (1998). SCAN test-retest reliability for first and third-grade children. Journal of Speech, Language, and Hearing Research, 41, 834–845.
Bellis, T. (1996). Assessment and management of Central Auditory Processing Disorders in the educational setting: From science to practice. San Diego: Singular Publishing Group.
Emerson, M., Crandall, K., Seikel, J., & Chermak, G. (1997). Observations on the use of the SCAN to identify children at risk for central auditory processing disorder. Language, Speech, and Hearing Services in Schools, 28, 43–49.
Keith, R. (1986). SCAN: A screening test for auditory processing disorders. San Diego, CA: The Psychological Corporation.
Keith, R. (1994). SCAN-A: A test for auditory processing disorders in adolescence and adults. San Antonio, TX: The Psychological Corporation.
Keith, R. (2000a). SCAN-C: Test for auditory processing disorders in children-Revised. San Antonio, TX: The Psychological Corporation.
Keith, R. (2000b). Development and standardization of SCAN-C Test for Auditory Processing Disorders in children. Journal of the American Academy of Audiology, 11(8), 438–445.
Keith, R., Rudy, J., Donahue, P., & Katbamna, B. (1989). Comparison of SCAN results with other auditory and language measures in a clinical population. Ear and Hearing, 10(6), 382–386.
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McCullagh, J. (2013). Screening Test for Auditory Processing Disorders. In: Volkmar, F.R. (eds) Encyclopedia of Autism Spectrum Disorders. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-1698-3_1121
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