Multiple studies have implied that the degree of change in an individual's personality is a function of how old they are. During late adolescence, an individual's personality tends to change more radically than middle-aged adults, who report that their personalities have changed a little over the span of 5-6 years. The cumulative continuity principle suggests that the differences between one individual's personality to another get more consistent as they age. This increase in consistency is attributable to the increased stability of overt behavior from adolescence to adulthood. Moreover, an individual's self-rating of their personality becomes more uniform with the ratings of others as the individual ages. The increased stability in personality during older adulthood is also due to the constancy of one's immediate environment, including physical space, occupation, and partner.
The evidence for the first argument, that is, some individuals might show positive changes are as follows:
The evidence for the second argument, that is, some individuals might show negative changes are as follows:
Personality refers to an individual's distinctive and relatively consistent patterns of thinking, feeling, and acting. The personality of an individual is dynamic and changes across their lifespan in response to external circumstances such as traumatic events and distinctive experiences. However, certain personality traits remain consistent across time in an individual. Traits are relatively stable characteristics present in an individual. For instance, some children might be extroverts. Extraversion is a trait. Such traits mostly remain constant throughout one's life span and may maintain this distinctiveness.
The personality of individuals changes over time. Such changes might be good or bad. The following arguments can be considered:
When the personality of individuals changes in a positive manner across their life span; individuals are expected to perform their roles and responsibilities and act in accordance with more maturity. To be able to fulfill their obligations, they tend to become more psychologically mature and act consistently across a variety of circumstances.