International Measurement Invariance: A Multi-National Evaluation of the Level of Personality Functioning Scale – Brief Form 2.0 and Personality Disorder Severity ICD-11 Scale Across 26 Countries

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Résumé

The global prevalence rate of personality disorders (PDs) is fairly high (ranging from 7.8% to 12.16%). Variability in these estimates is partly due to heterogeneity across countries, leading experts to hypothesize that environmental and sociocultural factors contribute to variations in the development, expression, and maintenance of PDs. Yet, few large international studies have empirically tested this hypothesis (for exceptions, see Turner et al.). The field’s limited knowledge in this scientific area is alarming in light of known associations between PDs and high health service utilization, economic burden, medical morbidity and mortality, double the odds of poor treatment outcome, and numerous other public health issues and societal costs.

Mots-clés

International Measurement Invariance, Multi-National Evaluation, Level of Personality Functioning Scale, Scale Across 26 Countries