Egos Inflating Over Time: A Cross‐Temporal Meta‐Analysis of the Narcissistic Personality Inventory

Twenge, Jean M.; Konrath, Sara; Foster, Joshua D.; Campbell, W. Keith; Bushman, Brad J.

doi:10.1111/j.1467-6494.2008.00507.x

reviewJournal of PersonalityMay 23, 2008Closed access

Egos Inflating Over Time: A Cross‐Temporal Meta‐Analysis of the Narcissistic Personality Inventory

JMJean M. Twenge SKSara Konrath JDJoshua D. Foster WKW. Keith Campbell BJBrad J. Bushman

San Diego State University · University of Michigan · +1 more institution

PubMed

Indexed incrossrefpubmed

Abstract

A cross-temporal meta-analysis found that narcissism levels have risen over the generations in 85 samples of American college students who completed the 40-item forced-choice Narcissistic Personality Inventory (NPI) between 1979 and 2006 (total n=16,475). Mean narcissism scores were significantly correlated with year of data collection when weighted by sample size (beta=.53, p

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Topics & keywords

Topics

Keywords

Narcissism
Psychology
Extraversion and introversion
Assertiveness
California Psychological Inventory
Personality
Personality Assessment Inventory
Big Five personality traits

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