What question did this study set out to answer?

To assess and compare the lifespan trajectories and rate of change in self-reported Big Five personality traits across diverse longitudinal cohorts.

May 1, 2020European Journal of PersonalityOpen Access

Trajectories of Big Five Personality Traits: A Coordinated Analysis of 16 Longitudinal Samples

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Authors

EGEileen K GrahamNorthwestern University SWSara J. WestonUniversity of Oregon DGDenis GerstorfHumboldt-Universität zu Berlin

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Implication

Coordinated longitudinal analysis reveals declines in conscientiousness, extraversion, and openness across adulthood, suggesting personality traits evolve throughout the lifespan.

Key Points

To assess and compare the lifespan trajectories and rate of change in self-reported Big Five personality traits across diverse longitudinal cohorts.
Conducted a coordinated integrative data analysis combining 16 longitudinal samples with a total sample size exceeding 60,000 participants.
Estimated identical multilevel growth models across datasets to evaluate linear trait trajectories, alongside quadratic models for cohorts with at least four measurement occasions.
Synthesized fixed effects using meta-analytic models and tested potential moderation by sample age, sex, country of origin, and measurement instrument.
Linear growth models demonstrated systematic declines across samples in conscientiousness, extraversion, and openness over time.
Non-linear trajectory models identified late-life increases in neuroticism.
Fixed effects showed heterogeneity across cohorts, with variance partially explained by participant age, country of origin, and personality measurement method, while sex and baseline age showed mixed predictive value.

Cite This Study

Graham et al. (2020) studied this question.

synapsesocial.com/papers/69d8f37be72b319804d17d44 https://doi.org/10.1002/per.2259

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May 1, 2020European Journal of PersonalityOpen Access

Trajectories of Big Five Personality Traits: A Coordinated Analysis of 16 Longitudinal Samples

View Full Paper

Ask AI

Bookmark

Authors

EGEileen K GrahamNorthwestern University SWSara J. WestonUniversity of Oregon DGDenis GerstorfHumboldt-Universität zu Berlin

Discussion

Member takes

Implication

Coordinated longitudinal analysis reveals declines in conscientiousness, extraversion, and openness across adulthood, suggesting personality traits evolve throughout the lifespan.

Key Points

To assess and compare the lifespan trajectories and rate of change in self-reported Big Five personality traits across diverse longitudinal cohorts.
Conducted a coordinated integrative data analysis combining 16 longitudinal samples with a total sample size exceeding 60,000 participants.
Estimated identical multilevel growth models across datasets to evaluate linear trait trajectories, alongside quadratic models for cohorts with at least four measurement occasions.
Synthesized fixed effects using meta-analytic models and tested potential moderation by sample age, sex, country of origin, and measurement instrument.
Linear growth models demonstrated systematic declines across samples in conscientiousness, extraversion, and openness over time.
Non-linear trajectory models identified late-life increases in neuroticism.
Fixed effects showed heterogeneity across cohorts, with variance partially explained by participant age, country of origin, and personality measurement method, while sex and baseline age showed mixed predictive value.

Cite This Study

Graham et al. (2020) studied this question.

synapsesocial.com/papers/69d8f37be72b319804d17d44 https://doi.org/10.1002/per.2259

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