he other had refers to constancy or a lack of change and a similar position over time. People demonstrate a lack of change between mid-forties and late seventies. However, reactions to life stressors such as likelihood of dying or falling ill are subject to variation due to cognitive and personality functioning. In the study of lifespan development, level of education has been shown to play a more decisive role than sex or ethnic origin. Personalities labeled as cooperative, dependable, honest, and concerned with family and others tended to remain stable over
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