Correlates of personality trait levels and their changes in very old age: The Lothian Birth Cohort 1921 |
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| Authors: | René Mõttus Wendy Johnson John M Starr Ian J Deary |
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| Institution: | 1. Department of Neurobiology, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel;2. Department of Psychology, Stanford University, Stanford, CA, USA;3. School of Psychological Sciences, Faculty of Social Sciences, Tel Aviv University, Tel Aviv, Israel;4. Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel;1. Centre de Recherches en Psychologie, Cognition, Communication, European University of Brittany at Rennes, Rennes 2, France;2. Université de Bretagne Occidentale, France |
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| Abstract: | We tested the associations between individual differences in the Big Five personality traits and their changes over the ninth decade of life and levels of and changes in cognitive functioning, physical fitness, and everyday functioning. Besides mean-level changes in personality traits, there were significant individual differences in their rates of change between ages 81 and 87. The changes in the Big Five traits were not strongly intercorrelated, suggesting little common influence on personality change. Lower IQ at age 79 predicted lower Intellect and higher Extraversion, and more decline in Conscientiousness from ages 81 to 87. Also, decreases in physical fitness were associated with declines in Conscientiousness. |
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