Investigation of the reliability of the SSI-3 for preschool Persian-speaking children who stutter

Mehdi Bakhtiar, Sadegh Seifpanahi, Hossein Ansari, Mehdi Ghanadzade, Ann Packman

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)


There is a pressing need in Iran for the translation of widely used speech-language assessment tools into Persian. This study reports the interjudge and intrajudge reliability of a Persian translation of the Stuttering Severity Instrument-3 (SSI-3) (Riley, 1994). There was greater than 80% interjudge and intrajudge agreement on scale scores for Frequency and Duration, 54% interjudge and 62.2% intrajudge agreement for " Physical Concomitants" and greater than 80% interjudge and intrajudge agreement for the Overall score. In conclusion, although percentage agreement for Physical Concomitant Behaviors was low, the Persian translation of SSI-3 shows otherwise acceptable interjudge and intrajudge reliability when performed under ideal conditions. Educational objectives: The reader of this article will be able to: (1) explain the process of test translation from the original language to another language; (2) summarize the process of determining interjudge and intrajudge reliability of the SSI-3 in preschoolers.
Original languageEnglish
Pages (from-to)87-91
Number of pages5
JournalJournal of Fluency Disorders
Issue number2
Publication statusPublished - 1 Jun 2010
Externally publishedYes


  • Reliability
  • SSI-3Preschool children
  • Stuttering

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Language and Linguistics
  • Linguistics and Language
  • Cognitive Neuroscience
  • Speech and Hearing
  • LPN and LVN

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