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A Principal-Components Analysis of the Narcissistic Personality Inventory and Further Evidence of Its Construct Validity

A Principal-Components Analysis of the Narcissistic Personality Inventory and Further Evidence of... We examined the internal and external validity of the Narcissistic Personality Inventory (NPI). Study 1 explored the internal structure of the NPI responses of 1,018 subjects. Using principal-components analysis, we analyzed the tetrachoric correlations among the NPI item responses and found evidence for a general construct of narcissism as well as seven first-order components, identified as Authority, Exhibitionism, Superiority, Vanity, Exploitativeness, Entitlement, and Self-Sufficiency. Study 2 explored the NPI's construct validity with respect to a variety of indexes derived from observational and self-report data in a sample of 57 subjects. Study 3 investigated the NPI's construct validity with respect to 128 subjects' self and ideal self-descriptions, and their congruency, on the Leary Interpersonal Check List. The results from Studies 2 and 3 tend to support the construct validity of the full-scale NPI and its component scales. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Personality and Social Psychology American Psychological Association

A Principal-Components Analysis of the Narcissistic Personality Inventory and Further Evidence of Its Construct Validity

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References (92)

Publisher
American Psychological Association
Copyright
Copyright © 1988 American Psychological Association
ISSN
0022-3514
eISSN
1939-1315
DOI
10.1037/0022-3514.54.5.890
Publisher site
See Article on Publisher Site

Abstract

We examined the internal and external validity of the Narcissistic Personality Inventory (NPI). Study 1 explored the internal structure of the NPI responses of 1,018 subjects. Using principal-components analysis, we analyzed the tetrachoric correlations among the NPI item responses and found evidence for a general construct of narcissism as well as seven first-order components, identified as Authority, Exhibitionism, Superiority, Vanity, Exploitativeness, Entitlement, and Self-Sufficiency. Study 2 explored the NPI's construct validity with respect to a variety of indexes derived from observational and self-report data in a sample of 57 subjects. Study 3 investigated the NPI's construct validity with respect to 128 subjects' self and ideal self-descriptions, and their congruency, on the Leary Interpersonal Check List. The results from Studies 2 and 3 tend to support the construct validity of the full-scale NPI and its component scales.

Journal

Journal of Personality and Social PsychologyAmerican Psychological Association

Published: May 1, 1988

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