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

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

Research output: Contribution to journalArticle

3 Scopus citations

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 2019

All Science Journal Classification (ASJC) codes

  • Clinical Psychology
  • Psychiatry and Mental health

Fingerprint Dive into the research topics of 'A parallel process latent growth model of narcissistic personality disorder symptoms and normal personality traits'. Together they form a unique fingerprint.

Cite this