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Development and initial validation of a Structured Interview for Temperament and Character (SIT-C).

Saeid Komasi1, Farideh Nargesi2, Behrooz Faridmarandi3

  • 1Department of Neuroscience and Psychopathology Research, Mind GPS Institute, Kermanshah, Iran.

BMC Psychology
|June 20, 2026
PubMed
Summary
This summary is machine-generated.

This study developed the Structured Interview for Temperament and Character (SIT-C), a culturally adapted tool for personality assessment. The SIT-C shows strong reliability and validity, offering an efficient clinician-rated alternative to self-report measures.

Keywords:
PersonalityPsychometricsStructured interviewTemperament and characterValidation

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Area of Science:

  • Psychiatry
  • Psychology
  • Personality Assessment

Background:

  • Culturally adapted assessment of temperament and character is crucial for diagnostic utility.
  • Previous methods lacked cultural validity in diverse populations.
  • Clinician-rated assessments offer objective insights into personality traits.

Purpose of the Study:

  • To develop and psychometrically evaluate the Structured Interview for Temperament and Character (SIT-C) for use in Iran.
  • To enhance the cultural validity and diagnostic utility of personality assessment.
  • To provide a clinician-rated tool for evaluating temperament and character.

Main Methods:

  • A cross-sectional design was employed with clinical (n=29) and community (n=170) samples.
  • The SIT-C, a 58-item interview, was derived from the Revised Temperament and Character Inventory.
  • Psychometric properties including interrater reliability, internal consistency, and various forms of validity were examined.

Main Results:

  • The SIT-C demonstrated good to excellent interrater reliability (ICCs 0.48-0.94, mean 0.80).
  • Seven SIT-C domains showed acceptable reliability (Cronbach's alpha up to 0.88).
  • The SIT-C exhibited significant convergent and discriminant validity and incrementally predicted global functioning.

Conclusions:

  • The SIT-C is a concise, culturally adaptable, and objective clinician-rated instrument.
  • It rivals longer self-report measures in personality assessment efficiency and objectivity.
  • The SIT-C holds promise for global clinical and research applications in personality evaluation.