Validation study of the Narcissistic Personality Inventory-13 among a school sample of Portuguese youths

Pechorro, Pedro; Nunes, Cristina; Goncalves, Rui Abrunhosa; Simoes, Mario R.; Oliveira, Joao Pedro

http://hdl.handle.net/10400.1/14495

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Authors

Pechorro, Pedro

Nunes, Cristina

Goncalves, Rui Abrunhosa

Simoes, Mario R.

Oliveira, Joao Pedro

Abstract(s)

The main aim of the present study was to translate and validate the Narcissistic Personality Inventory-13 (NPI-13) among a school sample (N=543) of male and female Portuguese youths. The NPI-13 demonstrated good psychometric properties, namely in terms of its three-factor structure, internal consistency, convergent validity, discriminant validity and criterion-related validity. Positive correlations were found with Conduct Disorder symptoms, alcohol use, drug use and unprotected sex. The psychometric properties of the NPI-13 mostly justify its use among Portuguese adolescents in a school context.