Glyndon D. Riley
The fourth edition of the SSI is the only standardized stuttering assessment available.
2 to 10+
15 to 20 Minutes
SSI-4: Stuttering Severity Instrument - Fourth Edition is a reliable and valid norm-referenced stuttering assessment that can be used for both clinical and search purposes.
SSI-4 was normed on a sample of 72 preschool-aged children, 139 school-aged children, and 60 adults.
Assess easily online from anywhere. Includes automatic scoring and report generation.
Requires software. Includes automatic scoring and report generation.
QuikScore forms are scored by hand without reports.
Examiner's Manual and Picture Plates, 50 Test Record and Frequency Computation Forms & CSSS2.0
SSI-4 : Test Record & Fluency Computation Forms
SSI-4 : Examiner's Manual and Picture Plates