Final answer:
Normative age-related changes encompass primary aging, which includes inevitable biological changes, and secondary aging, which involves lifestyle-related changes. Together, they define the physical, cognitive, and psychosocial progression of aging.
Step-by-step explanation:
The two components of normative age-related change are primary aging and secondary aging. Primary aging refers to the biological factors such as molecular and cellular changes that occur with age. Secondary aging, on the other hand, involves changes that occur due to controllable factors like lack of physical exercise, poor diet, and other lifestyle choices. Both primary and secondary aging contribute to the overall progression of aging, impacting individuals on various levels, including physical, cognitive, and psychosocial dimensions. Understanding these components is vital for grasping the holistic experience of aging as per the normative approach, which focuses on the average ages when specific developmental milestones are typically reached.