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The Unified Narcissism Scale: Moving towards an integrated measure of narcissism

Author(s) / Creator(s)

Sivanathan, Danushika
Bizumic, Boris
Monaghan, Conal

Abstract / Description

Narcissism as a psychological construct has had a contentious past both in its conceptualization and measurement. There is an emerging consensus that narcissism consists of grandiose and vulnerable subtypes, which share a common core. In the present research (N = 1002), we constructed a new measure of unified narcissism that reflects these contemporary understandings using items from the most widely used measures of grandiose and vulnerable narcissism: the Narcissistic Personality Inventory (NPI; Raskin & Terry, 1988, https://doi.org/10.1037/0022-3514.54.5.890), and the Pathological Narcissism Inventory (PNI; Pincus et al., 2009, https://doi-org/10.1037/a0016530). We used classical test theory and item response theory approaches to devise a 29-item Unified Narcissism Scale. The scale showed good internal consistency, and convergent and discriminant validity, and showed evidence of measurement invariance between men and women. This research gave strong support for the structure, reliability, and validity of the unified measure, which offers a promising avenue for further enhancing our knowledge of narcissism.

Keyword(s)

narcissism psychometrics scale construction factor analysis item reponse theory

Persistent Identifier

Date of first publication

2021-12-30

Journal title

Personality Science

Volume

2

Article number

Article e7417

Publisher

PsychOpen GOLD

Publication status

publishedVersion

Review status

peerReviewed

Is version of

Citation

Sivanathan, D., Bizumic, B., & Monaghan, C. (2021). The Unified Narcissism Scale: Moving towards an integrated measure of narcissism. Personality Science, 2, Article e7417. https://doi.org/10.5964/ps.7417
  • Author(s) / Creator(s)
    Sivanathan, Danushika
  • Author(s) / Creator(s)
    Bizumic, Boris
  • Author(s) / Creator(s)
    Monaghan, Conal
  • PsychArchives acquisition timestamp
    2022-04-14T11:25:24Z
  • Made available on
    2022-04-14T11:25:24Z
  • Date of first publication
    2021-12-30
  • Abstract / Description
    Narcissism as a psychological construct has had a contentious past both in its conceptualization and measurement. There is an emerging consensus that narcissism consists of grandiose and vulnerable subtypes, which share a common core. In the present research (N = 1002), we constructed a new measure of unified narcissism that reflects these contemporary understandings using items from the most widely used measures of grandiose and vulnerable narcissism: the Narcissistic Personality Inventory (NPI; Raskin & Terry, 1988, https://doi.org/10.1037/0022-3514.54.5.890), and the Pathological Narcissism Inventory (PNI; Pincus et al., 2009, https://doi-org/10.1037/a0016530). We used classical test theory and item response theory approaches to devise a 29-item Unified Narcissism Scale. The scale showed good internal consistency, and convergent and discriminant validity, and showed evidence of measurement invariance between men and women. This research gave strong support for the structure, reliability, and validity of the unified measure, which offers a promising avenue for further enhancing our knowledge of narcissism.
    en_US
  • Publication status
    publishedVersion
  • Review status
    peerReviewed
  • Citation
    Sivanathan, D., Bizumic, B., & Monaghan, C. (2021). The Unified Narcissism Scale: Moving towards an integrated measure of narcissism. Personality Science, 2, Article e7417. https://doi.org/10.5964/ps.7417
    en_US
  • ISSN
    2700-0710
  • Persistent Identifier
    https://hdl.handle.net/20.500.12034/5737
  • Persistent Identifier
    https://doi.org/10.23668/psycharchives.6341
  • Language of content
    eng
  • Publisher
    PsychOpen GOLD
  • Is version of
    https://doi.org/10.5964/ps.7417
  • Is related to
    https://doi.org/10.23668/psycharchives.5316
  • Is related to
    https://doi.org/10.23668/psycharchives.5318
  • Is related to
    https://doi.org/10.23668/psycharchives.5319
  • Is related to
    https://doi.org/10.23668/psycharchives.5317
  • Keyword(s)
    narcissism
    en_US
  • Keyword(s)
    psychometrics
    en_US
  • Keyword(s)
    scale construction
    en_US
  • Keyword(s)
    factor analysis
    en_US
  • Keyword(s)
    item reponse theory
    en_US
  • Dewey Decimal Classification number(s)
    150
  • Title
    The Unified Narcissism Scale: Moving towards an integrated measure of narcissism
    en_US
  • DRO type
    article
  • Article number
    Article e7417
  • Journal title
    Personality Science
  • Volume
    2
  • Visible tag(s)
    Version of Record
    en_US