The adult years are difficult to divide into discrete periods because
A)biological aging does not begin until middle adulthood.
B)the timing of important milestones varies greatly among individuals.
C)the physical changes of the adult years are one-dimensional.
D)adults are often reluctant to identify themselves as belonging to a particular developmental period.

Question

Quizplus · Accepted Answer

The adult years are difficult to divide into discrete periods because the timing of important milestones varies greatly among individuals. Different individuals may reach certain milestones at different ages, making it difficult to classify the adult years into specific periods. Biological aging begins in early adulthood, making option A incorrect. The physical changes of the adult years are multidimensional and include cognitive, social, and emotional changes in addition to physical changes, making option C incorrect. While some adults may be reluctant to identify with a specific age group, this is not the primary reason why the adult years are difficult to divide into discrete periods, making option D incorrect.

The Adult Years Are Difficult to Divide into Discrete Periods