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    Stuttering Severity Instrument – Fourth Edition (SSI-IV)

    Stuttering Severity Instrument – Fourth Edition

    Ages: 2-10 and up
    Testing Time: 15 to 20 minutes
    Administration: Individual
    Complete Kit: Examiner’s Manual and Picture Plates, 50 Test Record and Frequency Computation Forms, and CSSS 2.0, all in a sturdy storage box.

    product description

    Stuttering Severity Instrument–Fourth Edition (SSI-4) is a reliable and valid norm-referenced stuttering assessment that can be used for both clinical and search purposes. It measures stuttering severity in both children and adults in the four areas of speech behavior:


    • Frequency
    • Duration
    • Physical concomitants
    • Naturalness of the individual’s speech.