Validation of self-report measures of narcissism against a diagnostic interview | Zendy

Stéphanie Baggio | Zendy; Katia Iglesias | Zendy; Miguel Duarte | Zendy; Rosetta Nicastro | Zendy; Roland Hasler | Zendy; Sebastian Euler | Zendy; Martin Debbané | Zendy; Vladan Starčević | Zendy; Nader Perroud | Zendy

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Validation of self-report measures of narcissism against a diagnostic interview

Author(s) -

Stéphanie Baggio,

Katia Iglesias,

Miguel Duarte,

Rosetta Nicastro,

Roland Hasler,

Sebastian Euler,

Martin Debbané,

Vladan Starčević,

Nader Perroud

Publication year - 2022

Publication title -

plos one

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.99

H-Index - 332

ISSN - 1932-6203

DOI - 10.1371/journal.pone.0266540

Subject(s) - narcissism , narcissistic personality disorder , pathological , personality assessment inventory , clinical psychology , personality , convergent validity , personality disorders , psychology , population , psychometrics , personality pathology , medicine , social psychology , environmental health , internal consistency

The Pathological Narcissism Inventory (PNI) and the Narcissistic Personality Inventory (NPI) are often used to screen for pathological narcissism but have rarely been validated against a clinician-administered diagnostic interview. Our study evaluated the convergent validity of the PNI and NPI against a diagnostic interview for narcissistic personality disorder (NPD) in a clinical population. We used data from a psychiatric outpatient center located in Switzerland (n = 123). Correlations between PNI/NPI and NPD ranged between .299 and .498 (common variance 9.0–24.8%). The PNI and NPI should be used carefully to screen for NPD. We highlight a need to increase the compatibility between the conceptual underpinnings of the PNI, NPI and NPD.

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