Stuttering Severity Instrument - Fourth Edition

Instrument Name: Stuttering Severity Instrument - Fourth Edition

Abbreviation: SSI-4

Points for Consideration:

Concerns: stuttering is highly variable across settings, contexts, points in time. Stuttering is very difficult to quantify and standardize.

Description of Tool:

The Stuttering Severity Instrument - Fourth Edition is a ClinRO and PerfO developed to measure stuttering severity in children aged greater than 2 years. It is composed of 4 subscales: Frequency, Duration, Physical concomitants and the Naturalness of the individual’s speech.

Other Related Tools (if applicable):

Overall Assessment of the Speaker's Experience of Stuttering (OASES™ Yaruss & Quesal, 2016).

Minimum Qualification Required by COA Administrator: MA or BA

Comment:

Based on the SSI developed in 1972

Year: 2009

Objective of Development:

To measure stuttering severity

Population of Development: Age range (therapeutic indication):

+2 years (Stuttering)

Pediatric Population(s) in which COA has been used:

Pathological Conditions, Signs and Symptoms ; Nervous System Diseases

COA type:

Number of Items 4

Mode of Administration:

Data Collection Mode:

Time for Completion: 15-20 min

Response Scales: 6,7,9-point Likert/Likert-type Scale Other: Numerical Rating Scale ranging from 1 "Highly natural sounding speech" to 9 "Highly unnatural sounding speech"

Summary of Scoring:

Available Scores:
Scores by items: Speech Naturalness ranging from 1 to 9
Other: Total score by summing frequency, duration and physical concomitants scores and then convert to percentile

Weighting:
No

Score direction:
Higher score: Higher severity

Evidence of Literature Review: None identified

Evidence of Instrument Review: Yes

Evidence of Clinical or Expert Input: Yes

Evidence of concept elicitation in target patient population: None identified

Evidence of a Saturation Grid: None identified

Evidence for Selection of Data Collection Method: None identified

Recall/Observation Period:

Evidence for Selection of Reponse Options: Yes

Evidence of cognitive interviewing of draft instrument in target patient population: None identified

Evidence of Preliminary Scoring of Items and Domains: None identified

Evidence related to respondent and administrator burden: None identified

Evidence of a Conceptual Framework: None identified

Evidence of an item-tracking matrix: None identified

Evidence related to item selection: None identified

Evidence of re-testing the final version: None identified

Internal consistency (Cronbach's alpha): None identified

Evidence of internal consistency:

Evidence of test-retest or inter-rater reliability: None identified

Concurrent validity (convergent, divergent):

None identified

Known-group validity:

None identified

Evidence of Translatability Assessment: None identified

Evidence related to missing data: None identified

Evidence for Selection of Recall Period: None identified

Evidence of Administration Instructions and Training Provided: Yes

Evidence of concurrent validity: None identified

Evidence of known-groups validity: None identified

Evidence of ability to detect change over time: None identified

Ability to detect change (Responsiveness):

None identified

Responder Thresholds:

None identified

Evidence of responder thresholds: None identified

Riley GD. A stuttering severity instrument for children and adults. J Speech Hear Disord. 1972 Aug;37(3):314-22
Abstract: https://pubs.asha.org/doi/10.1044/jshd.3703.314?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed

PRO-ED website: https://www.proedinc.com/Products/13025/ssi4-stuttering-severity-instrument--fourth-edition.aspx

See (PubMed results)
https://pubmed.ncbi.nlm.nih.gov/?term=%22Stuttering%20Severity%20Instrument%22&sort=date

None identified

Original language:
English

Translations:
Arabic for Egypt
Persian for Iran

Arabic for Egypt:
Khodeir MS. 'Exploring stuttering severity in the Egyptian Arabic speaking children who stutter: A correlation study of Bloodstein classification of stuttering severity and the stuttering severity instrument for children and Adults-Arabic Version'. Int J Pediatr Otorhinolaryngol. 2019 Oct;125:38-43

Persian:
Tahmasebi N, Shafie B, Karimi H, Mazaheri M. A Persian-version of the stuttering severity instrument-version four (SSI-4): How the new additions to SSI-4 complement its stuttering severity score? J Commun Disord. 2018 Jul- Aug;74:1-9

Contact:
PRO-ED
E-mail: info@proedinc.com

Copyright:
Instrument copyrighted by PRO-ED

Conditions of use:
* With fees for commercial/pharmaceutical companies
* please order directly from the PRO-ED website: https://www.proedinc.com/Products/13025/ssi4-stuttering-severity-instrument--fourth-edition.aspx

https://www.proedinc.com/Products/13025/ssi4-stuttering-severity-instrument--fourth-edition.aspx

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