Article

Hierarchical linear modeling analyses of NEO-PI-R scales in the Baltimore Longitudinal Study of Aging

Laboratory of Personality and Cognition, National Institute on Aging, National Institutes of Health, Department of Health and Human Services, Baltimore, MD 21224-6825, USA.
Psychology and Aging (Impact Factor: 2.73). 10/2005; 20(3):493-506. DOI: 10.1037/0882-7974.20.3.493
Source: PubMed

ABSTRACT The authors examined age trends in the 5 factors and 30 facets assessed by the Revised NEO Personality Inventory in Baltimore Longitudinal Study of Aging data (N=1,944; 5,027 assessments) collected between 1989 and 2004. Consistent with cross-sectional results, hierarchical linear modeling analyses showed gradual personality changes in adulthood: a decline in Neuroticism up to age 80, stability and then decline in Extraversion, decline in Openness, increase in Agreeableness, and increase in Conscientiousness up to age 70. Some facets showed different curves from the factor they define. Birth cohort effects were modest, and there were no consistent Gender x Age interactions. Significant nonnormative changes were found for all 5 factors; they were not explained by attrition but might be due to genetic factors, disease, or life experience.

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    • "Across studies, neuroticism shows a negative linear trend across adulthood, and it has been suggested that this reflects a variety of changes that may continue to occur across most of adulthood, including increases in competence, vocational success, and emotional regulation abilities (e.g., Allemand et al. 2008; Roberts et al. 2006; Soto et al. 2011; Srivastava et al. 2003). There is also evidence of gender differences in the relationship between age and neuroticism, although findings are frequently inconsistent across studies (e.g., Lucas and Donnellan 2009; Soto et al. 2011; Srivastava et al. 2003; Terracciano et al. 2005; van Branje et al. 2007; Donnellan and Lucas 2008; see Roberts et al. 2006 for a meta-analysis), and so the analyses of interactions of age with gender are exploratory in the current study. "
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