Which of the following life events can significantly alter a person's self-concept?

A person's self-concept is shaped by various experiences and life events, and each of the listed scenarios can indeed have a significant impact on how an individual perceives themselves.

Being diagnosed with a chronic illness can profoundly alter a person’s self-concept by imposing new limitations, altering body image, and prompting a reevaluation of life goals and identity. The experience of living with a chronic condition can lead to feelings of loss, vulnerability, or even empowerment and resilience, depending on the individual’s response to it.

Taking an exam at school represents a situation where performance is evaluated, which can affect self-esteem and self-worth. The outcome of such an experience can influence how a student views their academic abilities and their future potential, thus shaping their self-concept in the context of education and achievement.

Experiencing a promotion at work is another event that can significantly alter self-concept. It can enhance an individual’s sense of competence and validation in their professional abilities, leading to increased confidence and a more positive view of themselves. Such a change can reinforce feelings of success and recognition, particularly in the context of personal and professional identity.

Since all these events can lead to significant introspection and shifts in how individuals perceive themselves—whether positively or negatively—it's