A parallel process latent growth model of narcissistic personality disorder symptoms and normal personality traits

Emily A. Dowgwillo, Aaron Lee Pincus, Mark F. Lenzenweger

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Although evidence from a number of longitudinal studies indicates a marked change in narcissistic personality disorder (NPD) symptoms over time, few studies have examined other psychological systems that may be related to this change. The current study uses data from the Longitudinal Study of Personality Disorders to examine how change in NPD symptoms is related to change in normal personality trait trajectories using parallel process growth curve modeling. A total of 250 students provided information on their personality traits and NPD symptoms on 3 occasions over the course of 4 years. Results suggest that cross-sectionally, NPD symptoms are positively correlated with dominance, neuroticism, and openness. Longitudinally, however, NPD symptoms decrease in parallel with increases in conscientiousness and decreases in neuroticism. Importantly, these longitudinal relationships are not a simple replication of the cross-sectional relationships between these 2 systems. Rather, this pattern of change is consistent with trait profiles suggesting maturation in young adults and has implications for the temporal stability of NPD as a construct and the theoretical relationship between normal personality traits and personality disorder more generally.

Original languageEnglish (US)
Pages (from-to)257-266
Number of pages10
JournalPersonality Disorders: Theory, Research, and Treatment
Volume10
Issue number3
DOIs
StatePublished - May 1 2019

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Personality Disorders
Personality
Growth
Longitudinal Studies
Young Adult
Students
Psychology

All Science Journal Classification (ASJC) codes

  • Clinical Psychology
  • Psychiatry and Mental health

Cite this

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A parallel process latent growth model of narcissistic personality disorder symptoms and normal personality traits. / Dowgwillo, Emily A.; Pincus, Aaron Lee; Lenzenweger, Mark F.

In: Personality Disorders: Theory, Research, and Treatment, Vol. 10, No. 3, 01.05.2019, p. 257-266.

Research output: Contribution to journalArticle

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