Final answer:
Daniel Levinson's model includes transitions from childhood to adolescence, adolescence to early adulthood, early to middle adulthood, and middle to late adulthood. Adolescence includes puberty and identity formation, early adulthood often involves major life establishment, middle adulthood includes career and relationship changes, and late adulthood entails facing aging and reflecting on life.
Step-by-step explanation:
Daniel Levinson identified major life transitions that typically occur between four distinct eras of an individual's life: childhood, adolescence, early adulthood, middle adulthood, and late adulthood. These transitions are significant periods where individuals experience various changes and developments. During adolescence, which is the period between childhood and adulthood, individuals go through significant events such as puberty, which marks physical maturation, brain development, the formation of personal identity, and changes in social relationships.
The next phase, early adulthood, is marked by establishing one's life course, which may include pursuits in education, career, and possibly starting a family. This period typically involves consolidating the identity formed during adolescence. Middle adulthood generally spans from ages 40 to 65, where individuals often experience changes such as career transitions, physical aging, and shifts in parental and interpersonal relationships. Finally, during late adulthood, individuals face the realities of aging, retirement, and reflecting on life's achievements and regrets.