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Background <p>The Youth Psychopathic Traits Inventory–Short Version (YPI-S) is a widely used self-report measure assessing psychopathic traits across three dimensions: Grandiose-Manipulative (GM), Callous-Unemotional (CU), and Impulsive-Irresponsible (II). Although originally developed for adolescents, emerging evidence suggests its relevance for adults. However, its psychometric properties have not been evaluated in adult clinical populations. This study addressed that gap by examining the factor structure, measurement invariance, internal consistency, and validity of the YPI-S in a clinical sample of adults.</p> Methods <p>417 adult outpatients (aged 18–65; <i>M</i> = 34.48, <i>SD</i> = 9.64; 37.1% male) from Taleghani Hospital in Tehran, Iran, completed the measures.</p> Results <p>Confirmatory factor analysis supported the expected hierarchical three-factor structure, with measurement invariance across sex groups. The YPI-S also demonstrated adequate internal consistency and yielded theoretically consistent associations with maladaptive personality traits (e.g., Antagonism, Negative Affectivity, Detachment, and Anankastia), supporting its convergent and discriminant validity.</p> Conclusions <p>These findings provide preliminary support for the YPI-S as a reliable and valid measure of psychopathic traits in adult clinical populations, with potential utility in both research and applied settings.</p>

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Psychometric properties of the Persian version of the youth psychopathic traits inventory-short version with an Iranian adult clinical sample

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月29日

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  • Sirvan Karimi,
  • Mojtaba Elhami Athar,
  • Amir Sam Kianimoghadam,
  • Seyedshahab Banihashem,
  • Ali Kheradmand,
  • Mohadeseh Hashemi,
  • Morteza Azizi,
  • Leila Kargaripadar,
  • Zahra Kargaripadar

摘要

Background

The Youth Psychopathic Traits Inventory–Short Version (YPI-S) is a widely used self-report measure assessing psychopathic traits across three dimensions: Grandiose-Manipulative (GM), Callous-Unemotional (CU), and Impulsive-Irresponsible (II). Although originally developed for adolescents, emerging evidence suggests its relevance for adults. However, its psychometric properties have not been evaluated in adult clinical populations. This study addressed that gap by examining the factor structure, measurement invariance, internal consistency, and validity of the YPI-S in a clinical sample of adults.

Methods

417 adult outpatients (aged 18–65; M = 34.48, SD = 9.64; 37.1% male) from Taleghani Hospital in Tehran, Iran, completed the measures.

Results

Confirmatory factor analysis supported the expected hierarchical three-factor structure, with measurement invariance across sex groups. The YPI-S also demonstrated adequate internal consistency and yielded theoretically consistent associations with maladaptive personality traits (e.g., Antagonism, Negative Affectivity, Detachment, and Anankastia), supporting its convergent and discriminant validity.

Conclusions

These findings provide preliminary support for the YPI-S as a reliable and valid measure of psychopathic traits in adult clinical populations, with potential utility in both research and applied settings.