Final answer:
According to Erikson, an identity crisis is most likely experienced during adolescence, a stage characterized by the personal quest for identity versus role confusion.
Step-by-step explanation:
An identity crisis is most likely experienced, according to Erikson, during adolescence. In this stage, which ranges from ages 12 to 18, adolescents face the challenge of identity versus role confusion. Erikson believed that the predominant question for teenagers is “Who am I?”, as they attempt to establish a sense of self. Successful navigation through this stage leads to a strong identity, while failure results in uncertainty and confusion about one's role in society. In contrast, older adults in late adulthood face the challenge of integrity versus despair, reflecting on their life's accomplishments, and early adults are concerned with intimacy versus isolation after having formed a solid self-identity.