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Turns out, broad patterns of thoughts, feelings, and behaviors may affect stability with growing age. Those who are the most emotionally stable when young are probably going to continue being the most stable as they age.
After testing how personality might change over 50 years, a new research conducted at the University of Houston suggested that personality is both stable and malleable across the lifespan.
The rankings of personality traits remain fairly consistent. People who are more conscientious than others at 16 are likely to be more conscientious than others at 66. But, on average, everyone becomes more conscientious, more emotionally stable, and more agreeable.
Researchers found individual differences in change across time, with some people changing more than others and some changing in more maladaptive or harmful ways.
Social scientists have long debated whether personality is stable - unchanged over time - or malleable. Recent studies have indicated it might be both, but longitudinal studies covering very long timespans and relying on the same data source at both time points are rare.
The new research supports the idea that personality is influenced by both genetics and environment.
Personality is described as patterns of thoughts, feelings, and behaviors, consisting of five major traits: conscientiousness, agreeableness, openness to experiences, extraversion, and emotional stability.
The combination of those traits - how dominant each trait is in a given individual relative to the other traits -makes up the personality profile.
The researchers stated that personality has a stable component across the lifespan, both at the trait level and at the profile level, and that person is also malleable and people mature as they age. They found gender differences in personality at any given time, but, overall, men and women changed at the same rates across the lifespan.
The findings appeared in the Journal of Personality and Social Psychology.