A new instrument for measuring stuttering severity has been standardized on children and 28 adults. The instrument attempted to meet the criteria of.
SSI Stuttering Severity Instrument – Fourth Edition Ages: and upTesting It measures stuttering severity in both children and adults in the four areas of.
Stuttering Severity Instrument for Children and Adults—Fourth Edition (SSI–4). Glyndon D. Riley. A measure of stuttering severity. Ages / Grades: 2 years.