Gender bias in assessing narcissistic personality: Exploring the utility of the ICD-11 dimensional model.

OBJECTIVES: Narcissistic personality disorder as captured in categorical diagnostic systems (e.g., DSM-5) emphasizes grandiose features more associated with masculine norms and under-emphasizes vulnerable features more associated with femininity. This poses significant implications in diagnostic outcome and clinical treatment in women with narcissistic preoccupations. Research finds that clinicians using the DSM-5 categorical system tend to diagnose vulnerable narcissism in women as other 'feminized' personality disorders (e.g., borderline), but no research has explored gender differences in narcissism using the new ICD-11 dimensional framework for personality disorders. This study investigated the clinical utility of the ICD-11 approach in capturing gender differences in narcissistic presentations.

METHODS: Adopting an online vignette-based study, mental health clinicians (N = 157; 71.3% female) completed ratings of ICD-11 personality disorder severity and trait domains for two cases reflecting 'grandiose' and 'vulnerable' narcissism in hypothetical male or female patients.

RESULTS: The results showed that ratings of core impairments in personality functioning and overall severity were consistent irrespective of patient or clinician gender, contrasting prior research using categorical models.

CONCLUSION: While some differences were observed in trait domain (e.g., negative affectivity) between patient gender, these results suggest the clinical utility of the ICD-11 model as emphasizing elements of personality functioning in the process of assessment and diagnosis, therefore potentially being less susceptible to influences of gender stereotype in aiding clinical conceptualization.