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The Italian adaptation of the Interpersonal Sensitivities Circumplex (ISC-IT) shows strong psychometric properties for measuring sensitivity to interpersonal behaviors. This validated tool helps understand personality traits and interpersonal dynamics.

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Area of Science:

  • Psychology
  • Social Psychology
  • Personality Psychology

Background:

  • Individual differences in sensitivity to interpersonal behaviors are key to social functioning.
  • The Interpersonal Sensitivities Circumplex (ISC) is a theoretical model organizing these sensitivities along agency and communion dimensions.
  • Validating circumplex measures requires advanced psychometric techniques.

Purpose of the Study:

  • To validate a 40-item Italian adaptation of the Interpersonal Sensitivities Circumplex (ISC-IT).
  • To employ advanced methods in test construction and validation for circumplex measures.
  • To assess the psychometric properties and theoretical structure of the ISC-IT in Italian general population samples.

Main Methods:

  • Ant colony optimization for optimal item selection.
  • Item-level circumplex modeling to avoid parceling limitations.
  • Dynamic fit index for rigorous assessment of theoretical structure.
  • Validation in two Italian general population samples (N=401 and N=301).

Main Results:

  • The ISC-IT demonstrated sound psychometric properties, including acceptable model fit and internal consistency.
  • Plausible associations between ISC-IT scores and external variables were found.
  • Replication of key findings: individuals are most sensitive to interpersonal behaviors opposite to their own.
  • Interpersonal sensitivities show general and specific associations with maladaptive personality traits.

Conclusions:

  • The ISC-IT is a psychometrically sound measure for assessing interpersonal sensitivities in Italian populations.
  • The study showcases contemporary techniques for developing and validating circumplex measures.
  • Findings contribute to the theoretical understanding of interpersonal sensitivities and their link to personality.