The Narcissistic Personality Inventory - 13 (NPI-13) was developed by Gentile et al. (2013). It is a shortened version of the 40-item NPI. The authors describe trait narcissism as a trait on a continuum with features of "a grandiose sense of self, feelings of entitlement, and a dominant and antagonistic interpersonal style (p. 1120)." Scale and subscales The NPI-13 has three subscales (Cronbach alpha values in parentheses): Leadership/authority (.66) Grandiose Exhibitionism (.65) Entitlement/ exploitativeness (.51) Total Scale alpha = .73. Psychometric Properties In general, the three NPI scales were significantly positively correlated with grandiose scales from the PNI and NGS, psychological entitlement, and both self-report and interview-based symptom of NPD. All three were also positively related to self-esteem scores," (Gentile et al., 2013, p. 1124). The authors also found positive correlations between the NPI scales and DSM-IV-TR personality disorders of paranoid
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