Genetic and Environmental Influences on Personality Trait Stability and Growth During the Transition to Adulthood: A Three-Wave Longitudinal Study

Christopher J. Hopwood, M. Brent Donnellan, Daniel M. Blonigen, Robert F. Krueger, Matt McGue, William G. Iacono, S. Alexandra Burt

Research output: Contribution to journalArticle

112 Scopus citations

Abstract

During the transition to adulthood individuals typically settle into adult roles in love and work. This transition also involves significant changes in personality traits that are generally in the direction of greater maturity and increased stability. Competing hypotheses have been offered to account for these personality changes: The intrinsic maturation hypothesis suggests that change trajectories are endogenous, whereas the life-course hypothesis suggests that these changes occur because of transactions with the social environment. This study investigated the patterns and origins of personality trait changes from ages 17 to 29 using 3 waves of Multidimensional Personality Questionnaire data provided by twins. Results suggest that (a) trait changes were more profound in the first relative to the second half of the transition to adulthood; (b) traits tend to become more stable during the second half of this transition, with all the traits yielding retest correlations between .74 and .78; (c) Negative Affectivity declined over time, and Constraint increased over time; minimal change was observed on agentic or communal aspects of Positive Emotionality; and (d) both genetic and nonshared environmental factors accounted for personality changes. Overall, these genetically informed results support a life-course perspective on personality development during the transition to adulthood.

Original languageEnglish (US)
Pages (from-to)545-556
Number of pages12
JournalJournal of personality and social psychology
Volume100
Issue number3
DOIs
StatePublished - Mar 2011

Keywords

  • Behavior genetics
  • Personality development
  • Personality traits
  • Transition to adulthood

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