Final answer:
Daniel Levinson's model of adult development does not specify three distinct tasks but involves a series of stages across the lifespan. These stages are often related to psychosocial, cognitive, and physical development, similar to other developmental theories such as Erikson's.
Step-by-step explanation:
The developmental tasks that Daniel Levinson delineated for adults involve coping with challenges and transitions that occur throughout the lifespan. While the question specifies Daniel Levinson, it is important to note that his theory was based on a series of stages, rather than three distinct tasks. Levinson's theory is often discussed in the context of adult development, particularly in the phase of entering adulthood, which includes the tasks of exploring possibilities for one's life, committing to certain goals and relationships, and making one's mark in the world. However, if we are to align this with broader development theories, we may infer that his model aligns somewhat with the three broad categories of development: psychosocial development, cognitive development, and physical development, akin to Erikson's psychosocial development stages. Levinson's stages reflect these areas as adults progress through his 'seasons of a man's life,' which include early adulthood transition, entering the adult world, the age-30 transition, settling down, the mid-life transition, entering middle adulthood, late adulthood, and the late adult transition.