Which theorist is associated with a six-stage model of development spanning from infancy to old age?

• A. Robert Havighurst
• B. Kubler Ross
• C. Activity Theory
• D. Primary aging

Answer: (A)

The main idea here is a lifespan development view that outlines the tasks people are expected to handle at different ages. Robert Havighurst proposed a six-stage sequence of developmental tasks stretching from infancy to old age. Each stage has socially defined tasks that, when mastered, support healthy development; when tasks are missed, it can lead to challenges later on. This emphasizes that development is a series of age-specific expectations shaped by culture, not just a single life event or purely biological changes.

That’s why this theorist is the best fit: the other names are associated with different ideas—Kubler-Ross with the five stages of grief, Activity Theory with aging through continued activity and social engagement, and primary aging with the biological processes of aging.