@article{ref1,
title="Psychometric examination and normative data for the Narcissistic Personality Inventory 29 item version",
journal="Scandinavian journal of psychology",
year="2009",
author="Svindseth, Marit F. and Sørebø, Øystein and Nøttestad, Jim Aage and Roaldset, John Olav and Wallin, Juliska and Dahl, Alv A.",
volume="50",
number="2",
pages="151-159",
abstract="The Narcissistic Personality Inventory (NPI) is commonly used in empirical studies of narcissism. Few population-based studies have been published. Our aim was to do a confirmatory factor analysis (CFA) of the NPI 29 item version with a four-factor structure, in two population-based samples and in a patient sample, and present normative population-based data. The NPI-29 was filled in by 324 respondents from the Norwegian population, 231 from the Swedish population and 167 Norwegian psychiatric patients. The four-factor structure of the NPI-29 with Leadership/Power, Exhibitionism/Self-admiration, Superiority/Arrogance and Uniqueness/Entitlement was reproduced in these samples. The CFA models showed good fit indices in all samples. Mean scores on the NPI-29 and four subscales hardly differed between the samples. For the NPI-29 total score and factors, few significant differences were observed. CFA of the samples supported the factor structure of the NPI-29 formerly identified by principal component analysis of the Swedish population sample.<p />",
language="",
issn="0036-5564",
doi="10.1111/j.1467-9450.2008.00686.x",
url="http://dx.doi.org/10.1111/j.1467-9450.2008.00686.x"
}