Stuttering Severity Instrument 3
Svensk översättning och utprövning
The main purpose of this study was to translate Stuttering Severity Instrument 3 and to evaluate its reliability and validity. Five speech-language pathologists assessed 35 adults who stutter with this assessment tool. Overall the results showed a very high inter- and intrarater reliability. A highly significant correlation between Stuttering Severity Instrument 3 and ratings of severity, made by the speech-language pathologists, strengthen the validityof Stuttering Severity Instrument 3. No correlation was found between the total score of Stuttering Severity Instrument 3 and the self-report measure Overall Assessment of the Speaker's Experience of Stuttering, whichindicates a lack of social validity in Stuttering Severity Instrument 3. When assessing overt stuttering in clinical and research setting in Sweden, Stuttering Severity Instrument 3 is regarded as relevant. Suggestions for changes in the assessment tool and its clinical application are discussed.