A large-scale research study has demonstrated that the widely held belief that human personality is unchangeable lacks solid scientific evidence. The phases of the study, which involved analyzing data from hundreds of thousands of individuals across multiple countries using advanced
statistical models, revealed that personality traits change at rates matching or exceeding changes in income or levels of social interaction. Traits such as conscientiousness and responsibility were ranked among the indicators most susceptible to change throughout the stages of life.
The findings clarified that individuals tend to significantly underestimate the extent of changes that may occur in their personalities, compared to their accuracy in estimating health changes, emphasizing that personality development varies from person to person and warrants research focused
on individual trajectories.
